Last data update: Mar 10, 2025. (Total: 48852 publications since 2009)
Records 1-23 (of 23 Records) |
Query Trace: Odhiambo FO[original query] |
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Willingness to know the cause of death and hypothetical acceptability of the minimally invasive autopsy in six diverse African and Asian settings: A mixed methods socio-behavioural study
Maixenchs M , Anselmo R , Zielinski-Gutierrez E , Odhiambo FO , Akello C , Ondire M , Zaidi SS , Soofi SB , Bhutta ZA , Diarra K , Djiteye M , Dembele R , Sow S , Minsoko PC , Agnandji ST , Lell B , Ismail MR , Carrilho C , Ordi J , Menendez C , Bassat Q , Munguambe K . PLoS Med 2016 13 (11) e1002172 BACKGROUND: The minimally invasive autopsy (MIA) is being investigated as an alternative to complete diagnostic autopsies for cause of death (CoD) investigation. Before potential implementation of the MIA in settings where post-mortem procedures are unusual, a thorough assessment of its feasibility and acceptability is essential. METHODS AND FINDINGS: We conducted a socio-behavioural study at the community level to understand local attitudes and perceptions related to death and the hypothetical feasibility and acceptability of conducting MIAs in six distinct settings in Gabon, Kenya, Mali, Mozambique, and Pakistan. A total of 504 interviews (135 key informants, 175 health providers [including formal health professionals and traditional or informal health providers], and 194 relatives of deceased people) were conducted. The constructs "willingness to know the CoD" and "hypothetical acceptability of MIAs" were quantified and analysed using the framework analysis approach to compare the occurrence of themes related to acceptability across participants. Overall, 75% (379/504) of the participants would be willing to know the CoD of a relative. The overall hypothetical acceptability of MIA on a relative was 73% (366/504). The idea of the MIA was acceptable because of its perceived simplicity and rapidity and particularly for not "mutilating" the body. Further, MIAs were believed to help prevent infectious diseases, address hereditary diseases, clarify the CoD, and avoid witchcraft accusations and conflicts within families. The main concerns regarding the procedure included the potential breach of confidentiality on the CoD, the misperception of organ removal, and the incompatibility with some religious beliefs. Formal health professionals were concerned about possible contradictions between the MIA findings and the clinical pre-mortem diagnoses. Acceptability of the MIA was equally high among Christian and Islamic communities. However, in the two predominantly Muslim countries, MIA acceptability was higher in Mali than in Pakistan. While the results of the study are encouraging for the potential use of the MIA for CoD investigation in low-income settings, they remain hypothetical, with a need for confirmation with real-life MIA implementation and in populations beyond Health and Demographic Surveillance System areas. CONCLUSIONS: This study showed a high level of interest in knowing the CoD of a relative and a high hypothetical acceptability of MIAs as a tool for CoD investigation across six distinct settings. These findings anticipate potential barriers and facilitators, both at the health facility and community level, essential for local tailoring of recommendations for future MIA implementation. |
Menstrual cups and sanitary pads to reduce school attrition, and sexually transmitted and reproductive tract infections: A cluster randomised controlled feasibility study in rural Western Kenya
Phillips-Howard PA , Nyothach E , Ter Kuile FO , Omoto J , Wang D , Zeh C , Onyango C , Mason L , Alexander KT , Odhiambo FO , Eleveld A , Mohammed A , van Eijk AM , Edwards RT , Vulule J , Faragher B , Laserson KF . BMJ Open 2016 6 (11) e013229 OBJECTIVES: Conduct a feasibility study on the effect of menstrual hygiene on schoolgirls' school and health (reproductive/sexual) outcomes. DESIGN: 3-arm single-site open cluster randomised controlled pilot study. SETTING: 30 primary schools in rural western Kenya, within a Health and Demographic Surveillance System. PARTICIPANTS: Primary schoolgirls 14-16 years, experienced 3 menses, no precluding disability, and resident in the study area. INTERVENTIONS: 1 insertable menstrual cup, or monthly sanitary pads, against 'usual practice' control. All participants received puberty education preintervention, and hand wash soap during intervention. Schools received hand wash soap. PRIMARY AND SECONDARY OUTCOME MEASURES: Primary: school attrition (drop-out, absence); secondary: sexually transmitted infection (STI) (Trichomonas vaginalis, Chlamydia trachomatis, Neisseria gonorrhoea), reproductive tract infection (RTI) (bacterial vaginosis, Candida albicans); safety: toxic shock syndrome, vaginal Staphylococcus aureus. RESULTS: Of 751 girls enrolled 644 were followed-up for a median of 10.9 months. Cups or pads did not reduce school dropout risk (control=8.0%, cups=11.2%, pads=10.2%). Self-reported absence was rarely reported and not assessable. Prevalence of STIs in the end-of-study survey among controls was 7.7% versus 4.2% in the cups arm (adjusted prevalence ratio (aPR) 0.48, 0.24 to 0.96, p=0.039), 4.5% with pads (aPR=0.62; 0.37 to 1.03, p=0.063), and 4.3% with cups and pads pooled (aPR=0.54, 0.34 to 0.87, p=0.012). RTI prevalence was 21.5%, 28.5% and 26.9% among cup, pad and control arms, 71% of which were bacterial vaginosis, with a prevalence of 14.6%, 19.8% and 20.5%, per arm, respectively. Bacterial vaginosis was less prevalent in the cups (12.9%) compared with pads (20.3%, aPR=0.65, 0.44 to 0.97, p=0.034) and control (19.2%, aPR=0.67, 0.43 to 1.04, p=0.075) arm girls enrolled for 9 months or longer. No adverse events were identified. CONCLUSIONS: Provision of menstrual cups and sanitary pads for approximately 1 school-year was associated with a lower STI risk, and cups with a lower bacterial vaginosis risk, but there was no association with school dropout. A large-scale trial on menstrual cups is warranted. TRIAL REGISTRATION: ISRCTN17486946; Results. |
Pregnant women's intentions and subsequent behaviors regarding maternal and neonatal service utilization: Results from a cohort study in Nyanza Province, Kenya
Creanga AA , Odhiambo GA , Odera B , Odhiambo FO , Desai M , Goodwin M , Laserson K , Goldberg H . PLoS One 2016 11 (9) e0162017 Higher use of maternal and neonatal health (MNH) services may reduce maternal and neonatal mortality in Kenya. This study aims to: 1) prospectively explore women's intentions to use MNH services (antenatal care, delivery in a facility, postnatal care, neonatal care) at <20 and 30-35 weeks' gestation and their actual use of these services; 2) identify predictors of intention-behavior discordance among women with positive service use intentions; 3) examine associations between place of delivery, women's reasons for choosing it, and birthing experiences. We used data from a 2012-2013 population-based cohort of pregnant women in the Demographic Surveillance Site in Nyanza province, Kenya. Of 1,056 women completing the study (89.1% response rate), 948 had live-births and 22 stillbirths, and they represent our analytic sample. Logistic regression analysis identified predictors of intention-behavior discordance regarding delivery in a facility and use of postnatal and neonatal care. At <20 and 30-35 weeks' gestation, most women intended to seek MNH services (≥93.9% and ≥87.5%, respectively, for all services assessed). Actual service use was high for antenatal (98.1%) and neonatal (88.5%) care, but lower for delivery in a facility (76.9%) and postnatal care (51.8%). Woman's age >35 and high-school education were significant predictors of intention-behavior discordance regarding delivery in a facility; several delivery-related factors were significantly associated with intention-behavior discordance regarding use of postnatal and neonatal care. Delivery facilities were chosen based on proximity to women's residence, affordability, and service quality; among women who delivered outside a health facility, 16.3% could not afford going to a facility. Good/very good birth experiences were reported by 93.6% of women who delivered in a facility and 32.6% of women who did not. We found higher MNH service utilization than previously documented in Nyanza province. Further increasing the number of facility deliveries and use of postnatal care may improve MNH in Kenya. |
The economic burden of maternal mortality on households: evidence from three sub-counties in rural western Kenya
Kes A , Ogwang S , Pande R , Douglas Z , Karuga R , Odhiambo FO , Laserson K , Schaffer K . Reprod Health 2015 12 Suppl 1 S3 BACKGROUND: This study explores the consequences of a maternal death to households in rural Western Kenya focusing particularly on the immediate financial and economic impacts. METHODS: Between September 2011 and March 2013 all households in the study area with a maternal death were surveyed. Data were collected on the demographic characteristics of the deceased woman; household socio-economic status; a history of the pregnancy and health care access and utilization; and disruption to household functioning due to the maternal death. These data were supplemented by in-depth and focus group discussions. RESULTS: The health service utilization costs associated with maternal deaths were significantly higher, due to more frequent service utilization as well as due to the higher cost of each visit suggesting more involved treatments and interventions were sought with these women. The already high costs incurred by cases during pregnancy were further increased during delivery and postpartum mainly a result of higher facility-based fees and expenses. Households who experienced a maternal death spent about one-third of their annual per capita consumption expenditure on healthcare access and use as opposed to at most 12% among households who had a health pregnancy and delivery. Funeral costs were often higher than the healthcare costs and altogether forced households to dis-save, liquidate assets and borrow money. What is more, the surviving members of the households had significant redistribution of labor and responsibilities to make up for the lost contributions of the deceased women. CONCLUSION: Kenya is in the process of instituting free maternity services in all public facilities. Effectively implemented, this policy can lift a major economic burden experienced by a very large number of household who seek maternal health services which can be catastrophic in complicated cases that result in maternal death. There needs to be further emphasis on insurance schemes that can support households through catastrophic health spending. |
Continuing with "…a heavy heart" - consequences of maternal death in rural Kenya
Pande R , Ogwang S , Karuga R , Rajan R , Kes A , Odhiambo FO , Laserson K , Schaffer K . Reprod Health 2015 12 Suppl 1 S2 BACKGROUND: This study analyzes the consequences of maternal death to households in Western Kenya, specifically, neonatal and infant survival, childcare and schooling, disruption of daily household activities, the emotional burden on household members, and coping mechanisms. METHODS: The study is a combination of qualitative analysis with matched and unmatched quantitative analysis using surveillance and survey data. Between September 2011 and March 2013 all households in the study area with a maternal death were surveyed. Data were collected on the demographic characteristics of the deceased woman; household socio-economic status; a history of the pregnancy that led to the death; schooling experiences of surviving school-age children; and disruption to household functioning due to the maternal death. These data were supplemented by in-depth and focus group discussions. Quantitative data on neonatal and infant survival from a demographic surveillance system in the study area were also used. Descriptive and bivariate analyses were conducted with the quantitative data, and qualitative data were analyzed through text analysis using NVivo. RESULTS: More than three-quarters of deceased women performed most household tasks when healthy. After the maternal death, the responsibility for these tasks fell primarily on the deceased's husbands, mothers, and mothers-in-law. Two-thirds of the individuals from households that suffered a maternal death had to shift into another household. Most children had to move away, mostly to their grandmother's home. About 37% of live births to women who died of maternal causes survived till age 1 year, compared to 65% of live births to a matched sample of women who died of non-maternal causes and 93% of live births to surviving women. Older, surviving children missed school or did not have enough time for schoolwork, because of increased housework or because the loss of household income due to the maternal death meant school fees could not be paid. Respondents expressed grief, frustration, anger and a sense of loss. Generous family and community support during the funeral and mourning periods was followed by little support thereafter. CONCLUSION: The detrimental consequences of a maternal death ripple out from the woman's spouse and children to the entire household, and across generations. |
Schoolgirls' experiences of changing and disposal of menstrual hygiene items and inferences for WASH in schools
Oduor C , Alexander KT , Oruko K , Nyothach E , Mason L , Odhiambo FO , Vulule J , Laserson KF , Phillips-Howard PA . Waterlines 2015 34 (4) 397-411 Menstrual hygiene management (MHM) challenges during changing and disposal of menstrual items are important in low-income countries (LICs) where schools lack sufficient water and sanitation. Changing in poorly maintained latrines may expose girls to excrement and infection. We examine the frequency of dropping menstrual items and disposal of waste by schoolgirls in a menstrual solutions feasibility study in western Kenya. Drops when changing were reported in 17 per cent (20 per cent <16 years; 16.5 per cent 16 years plus; p=0.04) of girls' reports overall. Differences by socio-economic status were not evident. Fifty-four per cent of girls dropped at least once. A quarter of girls using pads and cups reported drops in the first few months, reducing to 10 per cent over time, compared with ∼30 per cent among traditional item users. One in four accidental drops occurred at school during the study. When dropped at school, most girls swapped the dropped item for a new one, but 24 per cent brushed/washed the item and reused it. While no clinical events occurred during this study, data suggest dropping within latrines could place girls at potential risk of exposure to infection. Disposal of items, or emptying cups, was mostly into the latrine. We conclude that accidental dropping of menstrual items while changing is common, including at school. Prevention will be helped by improving poorly constructed sanitation facilities, shelving, privacy, and staggering/increasing break time for girls to change. Provision of special garbage bins to prevent clogging and overflow of latrines is recommended. © The authors, 2015. |
Handwashing for menstrual hygiene management among primary schoolgirls in rural western Kenya
Nyothach E , Alexander KT , Oduor C , Mason L , Oruko K , Odhiambo FO , Vulule J , Laserson KF , Phillips-Howard PA . Waterlines 2015 34 (4) 279-295 Good hand hygiene contributes to the health and educational attainment of schoolchildren. Poor menstrual hygiene management (MHM) is recognized to impact on girls' health, education, wellbeing and dignity, particularly in low-income countries. Identifying practical, affordable, and comfortable menstrual products to improve girls' MHM is needed. One potential costeffective product is the menstrual cup; however, provision of this insertable MHM product, in schools in low-income countries with challenging water, sanitation and hygiene (WASH) conditions, increases the need for assurance of good hand hygiene. This paper uses data from a randomized controlled feasibility study evaluating the acceptability, use and safety of menstrual hygiene products provided to schoolgirls in rural western Kenya. Here, we explore girls' handwashing practices in school when using menstrual cups, sanitary pads or traditional items, examining the availability of WASH and the reported frequency of handwashing. Data generated from interviews with adults, girls' private surveys, narratives from focus group discussions, and observational WASH surveys are explored. Reported presence of WASH was higher than that observed during random spot-checks. Overall, 10 per cent of girls never washed before, and 7 per cent never washed after, emptying or changing their menstrual item at school. Girls in cup schools were twice as likely to wash prior to emptying, compared with girls using other items. Handwashing among girls using traditional items was low, despite the same hand hygiene training across groups and a comparable WASH presence. Data highlight the need for sustained mechanisms to support schoolgirls' handwashing practices for MHM. |
Adolescent schoolgirls' experiences of menstrual cups and pads in rural western Kenya: a qualitative study
Mason L , Laserson KF , Oruko K , Nyothach E , Alexander KT , Odhiambo FO , Eleveld A , Isiye E , Ngere I , Omoto J , Mohammed A , Vulule J , Phillips-Howard PA . Waterlines 2015 34 (1) 15-30 Poor menstrual hygiene management (MHM) among schoolgirls in low-income countries affects girls' dignity, self-esteem, and schooling. Hygienic, effective, and sustainable menstrual products are required. A randomized controlled feasibility study was conducted among 14-16-year-old girls, in 30 primary schools in rural western Kenya, to examine acceptability, use, and safety of menstrual cups or sanitary pads. Focus group discussions (FGDs) were conducted to evaluate girls' perceptions and experiences six months after product introduction. Narratives from 10 girls' and 6 parents' FGDs were analysed thematically. Comparison, fear, and confidence were emergent themes. Initial use of cups was slow. Once comfortable, girls using cups or pads reported being free of embarrassing leakage, odour, and dislodged items compared with girls using traditional materials. School absenteeism and impaired concentration were only reported by girls using traditional materials. Girls using cups preferred them to pads. Advantages of cups and pads over traditional items provide optimism for MHM programmes. |
Deaths ascribed to non-communicable diseases among rural Kenyan adults are proportionately increasing: evidence from a health and demographic surveillance system, 2003-2010
Phillips-Howard PA , Laserson KF , Amek N , Beynon CM , Angell SY , Khagayi S , Byass P , Hamel MJ , van Eijk AM , Zielinski-Gutierrez E , Slutsker L , De Cock KM , Vulule J , Odhiambo FO . PLoS One 2014 9 (11) e114010 BACKGROUND: Non-communicable diseases (NCDs) result in more deaths globally than other causes. Monitoring systems require strengthening to attribute the NCD burden and deaths in low and middle-income countries (LMICs). Data from health and demographic surveillance systems (HDSS) can contribute towards this goal. METHODS AND FINDINGS: Between 2003 and 2010, 15,228 deaths in adults aged 15 years (y) and older were identified retrospectively using the HDSS census and verbal autopsy in rural western Kenya, attributed into broad categories using InterVA-4 computer algorithms; 37% were ascribed to NCDs, 60% to communicable diseases (CDs), 3% to injuries, and <1% maternal causes. Median age at death for NCDs was 66y and 71y for females and males, respectively, with 43% (39% male, 48% female) of NCD deaths occurring prematurely among adults aged below 65y. NCD deaths were mainly attributed to cancers (35%) and cardio-vascular diseases (CVDs; 29%). The proportionate mortality from NCDs rose from 35% in 2003 to 45% in 2010 (chi2 linear trend 93.4; p<0.001). While overall annual mortality rates (MRs) for NCDs fell, cancer-specific MRs rose from 200 to 262 per 100,000 population, mainly due to increasing deaths in adults aged 65y and older, and to respiratory neoplasms in all age groups. The substantial fall in CD MRs resulted in similar MRs for CDs and NCDs among all adult females by 2010. NCD MRs for adults aged 15y to <65y fell from 409 to 183 per 100,000 among females and from 517 to 283 per 100,000 population among males. NCD MRs were higher among males than females aged both below, and at or above, 65y. CONCLUSIONS: NCDs constitute a significant proportion of deaths in rural western Kenya. Evidence of the increasing contribution of NCDs to overall mortality supports international recommendations to introduce or enhance prevention, screening, diagnosis and treatment programmes in LMICs. |
Cause-specific childhood mortality in Africa and Asia: evidence from INDEPTH Health and Demographic Surveillance System sites
Streatfield PK , Khan WA , Bhuiya A , Hanifi SM , Alam N , Ouattara M , Sanou A , Sie A , Lankoande B , Soura AB , Bonfoh B , Jaeger F , Ngoran EK , Utzinger J , Abreha L , Melaku YA , Weldearegawi B , Ansah A , Hodgson A , Oduro A , Welaga P , Gyapong M , Narh CT , Narh-Bana SA , Kant S , Misra P , Rai SK , Bauni E , Mochamah G , Ndila C , Williams TN , Hamel MJ , Ngulukyo E , Odhiambo FO , Sewe M , Beguy D , Ezeh A , Oti S , Diallo A , Douillot L , Sokhna C , Delaunay V , Collinson MA , Kabudula CW , Kahn K , Herbst K , Mossong J , Chuc NT , Bangha M , Sankoh OA , Byass P . Glob Health Action 2014 7 25363 BACKGROUND: Childhood mortality, particularly in the first 5 years of life, is a major global concern and the target of Millennium Development Goal 4. Although the majority of childhood deaths occur in Africa and Asia, these are also the regions where such deaths are least likely to be registered. The INDEPTH Network works to alleviate this problem by collating detailed individual data from defined Health and Demographic Surveillance sites. By registering deaths and carrying out verbal autopsies to determine cause of death across many such sites, using standardised methods, the Network seeks to generate population-based mortality statistics that are not otherwise available. OBJECTIVE: To present a description of cause-specific mortality rates and fractions over the first 15 years of life as documented by INDEPTH Network sites in sub-Saharan Africa and south-east Asia. DESIGN: All childhood deaths at INDEPTH sites are routinely registered and followed up with verbal autopsy (VA) interviews. For this study, VA archives were transformed into the WHO 2012 VA standard format and processed using the InterVA-4 model to assign cause of death. Routine surveillance data also provided person-time denominators for mortality rates. Cause-specific mortality rates and cause-specific mortality fractions are presented according to WHO 2012 VA cause groups for neonatal, infant, 1-4 year and 5-14 year age groups. RESULTS: A total of 28,751 childhood deaths were documented during 4,387,824 person-years over 18 sites. Infant mortality ranged from 11 to 78 per 1,000 live births, with under-5 mortality from 15 to 152 per 1,000 live births. Sites in Vietnam and Kenya accounted for the lowest and highest mortality rates reported. CONCLUSIONS: Many children continue to die from relatively preventable causes, particularly in areas with high rates of malaria and HIV/AIDS. Neonatal mortality persists at relatively high, and perhaps sometimes under-documented, rates. External causes of death are a significant childhood problem in some settings. |
Cause-specific mortality in Africa and Asia: evidence from INDEPTH Health and Demographic Surveillance System sites
Streatfield PK , Khan WA , Bhuiya A , Alam N , Sie A , Soura AB , Bonfoh B , Ngoran EK , Weldearegawi B , Jasseh M , Oduro A , Gyapong M , Kant S , Juvekar S , Wilopo S , Williams TN , Odhiambo FO , Beguy D , Ezeh A , Kyobutungi C , Crampin A , Delaunay V , Tollman SM , Herbst K , Chuc NT , Sankoh OA , Tanner M , Byass P . Glob Health Action 2014 7 25362 BACKGROUND: Because most deaths in Africa and Asia are not well documented, estimates of mortality are often made using scanty data. The INDEPTH Network works to alleviate this problem by collating detailed individual data from defined Health and Demographic Surveillance sites. By registering all deaths over time and carrying out verbal autopsies to determine cause of death across many such sites, using standardised methods, the Network seeks to generate population-based mortality statistics that are not otherwise available. OBJECTIVE: To build a large standardised mortality database from African and Asian sites, detailing the relevant methods, and use it to describe cause-specific mortality patterns. DESIGN: Individual demographic and verbal autopsy (VA) data from 22 INDEPTH sites were collated into a standardised database. The INDEPTH 2013 population was used for standardisation. The WHO 2012 VA standard and the InterVA-4 model were used for assigning cause of death. RESULTS: A total of 111,910 deaths occurring over 12,204,043 person-years (accumulated between 1992 and 2012) were registered across the 22 sites, and for 98,429 of these deaths (88.0%) verbal autopsies were successfully completed. There was considerable variation in all-cause mortality between sites, with most of the differences being accounted for by variations in infectious causes as a proportion of all deaths. CONCLUSIONS: This dataset documents individual deaths across Africa and Asia in a standardised way, and on an unprecedented scale. While INDEPTH sites are not constructed to constitute a representative sample, and VA may not be the ideal method of determining cause of death, nevertheless these findings represent detailed mortality patterns for parts of the world that are severely under-served in terms of measuring mortality. Further papers explore details of mortality patterns among children and specifically for NCDs, external causes, pregnancy-related mortality, malaria, and HIV/AIDS. Comparisons will also be made where possible with other findings on mortality in the same regions. Findings presented here and in accompanying papers support the need for continued work towards much wider implementation of universal civil registration of deaths by cause on a worldwide basis. |
Childhood cause-specific mortality in rural western Kenya: application of the InterVA-4 model
Amek NO , Odhiambo FO , Khagayi S , Moige H , Orwa G , Hamel MJ , Van Eijk A , Vulule J , Slutsker L , Laserson KF . Glob Health Action 2014 7 25581 BACKGROUND: Assessing the progress in achieving the United Nation's Millennium Development Goals in terms of population health requires consistent and reliable information on cause-specific mortality, which is often rare in resource-constrained countries. Health and demographic surveillance systems (HDSS) have largely used medical personnel to review and assign likely causes of death based on the information gathered from standardized verbal autopsy (VA) forms. However, this approach is expensive and time consuming, and it may lead to biased results based on the knowledge and experience of individual clinicians. We assessed the cause-specific mortality for children under 5 years old (under-5 deaths) in Siaya County, obtained from a computer-based probabilistic model (InterVA-4). DESIGN: Successfully completed VA interviews for under-5 deaths conducted between January 2003 and December 2010 in the Kenya Medical Research Institute/US Centers for Disease Control and Prevention HDSS were extracted from the VA database and processed using the InterVA-4 (version 4.02) model for interpretation. Cause-specific mortality fractions were then generated from the causes of death produced by the model. RESULTS: A total of 84.33% (6,621) childhood deaths had completed VA data during the study period. Children aged 1-4 years constituted 48.53% of all cases, and 42.50% were from infants. A single cause of death was assigned to 89.18% (5,940) of cases, 8.35% (556) of cases were assigned two causes, and 2.10% (140) were assigned 'indeterminate' as cause of death by the InterVA-4 model. Overall, malaria (28.20%) was the leading cause of death, followed by acute respiratory infection including pneumonia (25.10%), in under-5 children over the study period. But in the first 5 years of the study period, acute respiratory infection including pneumonia was the main cause of death, followed by malaria. Similar trends were also reported in infants (29 days-11 months) and children aged 1-4 years. CONCLUSIONS: Under-5 cause-specific mortality obtained using the InterVA-4 model is consistent with existing knowledge on the burden of childhood diseases in rural western Kenya. |
Malaria mortality in Africa and Asia: evidence from INDEPTH health and demographic surveillance system sites
Streatfield PK , Khan WA , Bhuiya A , Hanifi SM , Alam N , Diboulo E , Sie A , Ye M , Compaore Y , Soura AB , Bonfoh B , Jaeger F , Ngoran EK , Utzinger J , Melaku YA , Mulugeta A , Weldearegawi B , Gomez P , Jasseh M , Hodgson A , Oduro A , Welaga P , Williams J , Awini E , Binka FN , Gyapong M , Kant S , Misra P , Srivastava R , Chaudhary B , Juvekar S , Wahab A , Wilopo S , Bauni E , Mochamah G , Ndila C , Williams TN , Hamel MJ , Lindblade KA , Odhiambo FO , Slutsker L , Ezeh A , Kyobutungi C , Wamukoya M , Delaunay V , Diallo A , Douillot L , Sokhna C , Gómez-Olivé FX , Kabudula CW , Mee P , Herbst K , Mossong J , Chuc NT , Arthur SS , Sankoh OA , Tanner M , Byass P . Glob Health Action 2014 7 25369 BACKGROUND: Malaria continues to be a major cause of infectious disease mortality in tropical regions. However, deaths from malaria are most often not individually documented, and as a result overall understanding of malaria epidemiology is inadequate. INDEPTH Network members maintain population surveillance in Health and Demographic Surveillance System sites across Africa and Asia, in which individual deaths are followed up with verbal autopsies. OBJECTIVE: To present patterns of malaria mortality determined by verbal autopsy from INDEPTH sites across Africa and Asia, comparing these findings with other relevant information on malaria in the same regions. DESIGN: From a database covering 111,910 deaths over 12,204,043 person-years in 22 sites, in which verbal autopsy data were handled according to the WHO 2012 standard and processed using the InterVA-4 model, over 6,000 deaths were attributed to malaria. The overall period covered was 1992-2012, but two-thirds of the observations related to 2006-2012. These deaths were analysed by site, time period, age group and sex to investigate epidemiological differences in malaria mortality. RESULTS: Rates of malaria mortality varied by 1:10,000 across the sites, with generally low rates in Asia (one site recording no malaria deaths over 0.5 million person-years) and some of the highest rates in West Africa (Nouna, Burkina Faso: 2.47 per 1,000 person-years). Childhood malaria mortality rates were strongly correlated with Malaria Atlas Project estimates of Plasmodium falciparum parasite rates for the same locations. Adult malaria mortality rates, while lower than corresponding childhood rates, were strongly correlated with childhood rates at the site level. CONCLUSIONS: The wide variations observed in malaria mortality, which were nevertheless consistent with various other estimates, suggest that population-based registration of deaths using verbal autopsy is a useful approach to understanding the details of malaria epidemiology. |
Mortality from external causes in Africa and Asia: evidence from INDEPTH Health and Demographic Surveillance System sites
Streatfield PK , Khan WA , Bhuiya A , Hanifi SM , Alam N , Diboulo E , Niamba L , Sie A , Lankoande B , Millogo R , Soura AB , Bonfoh B , Kone S , Ngoran EK , Utzinger J , Ashebir Y , Melaku YA , Weldearegawi B , Gomez P , Jasseh M , Azongo D , Oduro A , Wak G , Wontuo P , Attaa-Pomaa M , Gyapong M , Manyeh AK , Kant S , Misra P , Rai SK , Juvekar S , Patil R , Wahab A , Wilopo S , Bauni E , Mochamah G , Ndila C , Williams TN , Khaggayi C , Nyaguara A , Obor D , Odhiambo FO , Ezeh A , Oti S , Wamukoya M , Chihana M , Crampin A , Collinson MA , Kabudula CW , Wagner R , Herbst K , Mossong J , Emina JB , Sankoh OA , Byass P . Glob Health Action 2014 7 25366 BACKGROUND: Mortality from external causes, of all kinds, is an important component of overall mortality on a global basis. However, these deaths, like others in Africa and Asia, are often not counted or documented on an individual basis. Overviews of the state of external cause mortality in Africa and Asia are therefore based on uncertain information. The INDEPTH Network maintains longitudinal surveillance, including cause of death, at population sites across Africa and Asia, which offers important opportunities to document external cause mortality at the population level across a range of settings. OBJECTIVE: To describe patterns of mortality from external causes at INDEPTH Network sites across Africa and Asia, according to the WHO 2012 verbal autopsy (VA) cause categories. DESIGN: All deaths at INDEPTH sites are routinely registered and followed up with VA interviews. For this study, VA archives were transformed into the WHO 2012 VA standard format and processed using the InterVA-4 model to assign cause of death. Routine surveillance data also provide person-time denominators for mortality rates. RESULTS: A total of 5,884 deaths due to external causes were documented over 11,828,253 person-years. Approximately one-quarter of those deaths were to children younger than 15 years. Causes of death were dominated by childhood drowning in Bangladesh, and by transport-related deaths and intentional injuries elsewhere. Detailed mortality rates are presented by cause of death, age group, and sex. CONCLUSIONS: The patterns of external cause mortality found here generally corresponded with expectations and other sources of information, but they fill some important gaps in population-based mortality data. They provide an important source of information to inform potentially preventive intervention designs. |
Pregnancy-related mortality in Africa and Asia: evidence from INDEPTH Health and Demographic Surveillance System sites
Streatfield PK , Alam N , Compaore Y , Rossier C , Soura AB , Bonfoh B , Jaeger F , Ngoran EK , Utzinger J , Gomez P , Jasseh M , Ansah A , Debpuur C , Oduro A , Williams J , Addei S , Gyapong M , Kukula VA , Bauni E , Mochamah G , Ndila C , Williams TN , Desai M , Moige H , Odhiambo FO , Ogwang S , Beguy D , Ezeh A , Oti S , Chihana M , Crampin A , Price A , Delaunay V , Diallo A , Douillot L , Sokhna C , Collinson MA , Kahn K , Tollman SM , Herbst K , Mossong J , Emina JB , Sankoh OA , Byass P . Glob Health Action 2014 7 25368 BACKGROUND: Women continue to die in unacceptably large numbers around the world as a result of pregnancy, particularly in sub-Saharan Africa and Asia. Part of the problem is a lack of accurate, population-based information characterising the issues and informing solutions. Population surveillance sites, such as those operated within the INDEPTH Network, have the potential to contribute to bridging the information gaps. OBJECTIVE: To describe patterns of pregnancy-related mortality at INDEPTH Network Health and Demographic Surveillance System sites in sub-Saharan Africa and southeast Asia in terms of maternal mortality ratio (MMR) and cause-specific mortality rates. DESIGN: Data on individual deaths among women of reproductive age (WRA) (15-49) resident in INDEPTH sites were collated into a standardised database using the INDEPTH 2013 population standard, the WHO 2012 verbal autopsy (VA) standard, and the InterVA model for assigning cause of death. RESULTS: These analyses are based on reports from 14 INDEPTH sites, covering 14,198 deaths among WRA over 2,595,605 person-years observed. MMRs varied between 128 and 461 per 100,000 live births, while maternal mortality rates ranged from 0.11 to 0.74 per 1,000 person-years. Detailed rates per cause are tabulated, including analyses of direct maternal, indirect maternal, and incidental pregnancy-related deaths across the 14 sites. CONCLUSIONS: As expected, these findings confirmed unacceptably high continuing levels of maternal mortality. However, they also demonstrate the effectiveness of INDEPTH sites and of the VA methods applied to arrive at measurements of maternal mortality that are essential for planning effective solutions and monitoring programmatic impacts. |
Adult non-communicable disease mortality in Africa and Asia: evidence from INDEPTH Health and Demographic Surveillance System sites
Streatfield PK , Khan WA , Bhuiya A , Hanifi SM , Alam N , Bagagnan CH , Sie A , Zabre P , Lankoande B , Rossier C , Soura AB , Bonfoh B , Kone S , Ngoran EK , Utzinger J , Haile F , Melaku YA , Weldearegawi B , Gomez P , Jasseh M , Ansah P , Debpuur C , Oduro A , Wak G , Adjei A , Gyapong M , Sarpong D , Kant S , Misra P , Rai SK , Juvekar S , Lele P , Bauni E , Mochamah G , Ndila C , Williams TN , Laserson KF , Nyaguara A , Odhiambo FO , Phillips-Howard P , Ezeh A , Kyobutungi C , Oti S , Crampin A , Nyirenda M , Price A , Delaunay V , Diallo A , Douillot L , Sokhna C , Gómez-Olivé FX , Kahn K , Tollman SM , Herbst K , Mossong J , Chuc NT , Bangha M , Sankoh OA , Byass P . Glob Health Action 2014 7 25365 BACKGROUND: Mortality from non-communicable diseases (NCDs) is a major global issue, as other categories of mortality have diminished and life expectancy has increased. The World Health Organization's Member States have called for a 25% reduction in premature NCD mortality by 2025, which can only be achieved by substantial reductions in risk factors and improvements in the management of chronic conditions. A high burden of NCD mortality among much older people, who have survived other hazards, is inevitable. The INDEPTH Network collects detailed individual data within defined Health and Demographic Surveillance sites. By registering deaths and carrying out verbal autopsies to determine cause of death across many such sites, using standardised methods, the Network seeks to generate population-based mortality statistics that are not otherwise available. OBJECTIVE: To describe patterns of adult NCD mortality from INDEPTH Network sites across Africa and Asia, according to the WHO 2012 verbal autopsy (VA) cause categories, with separate consideration of premature (15-64 years) and older (65+ years) NCD mortality. DESIGN: All adult deaths at INDEPTH sites are routinely registered and followed up with VA interviews. For this study, VA archives were transformed into the WHO 2012 VA standard format and processed using the InterVA-4 model to assign cause of death. Routine surveillance data also provide person-time denominators for mortality rates. RESULTS: A total of 80,726 adult (over 15 years) deaths were documented over 7,423,497 person-years of observation. NCDs were attributed as the cause for 35.6% of these deaths. Slightly less than half of adult NCD deaths occurred in the 15-64 age group. Detailed results are presented by age and sex for leading causes of NCD mortality. Per-site rates of NCD mortality were significantly correlated with rates of HIV/AIDS-related mortality. CONCLUSIONS: These findings present important evidence on the distribution of NCD mortality across a wide range of African and Asian settings. This comes against a background of global concern about the burden of NCD mortality, especially among adults aged under 70, and provides an important baseline for future work. |
Age-specific malaria mortality rates in the KEMRI/CDC Health and Demographic Surveillance System in western Kenya, 2003-2010
Desai M , Buff AM , Khagayi S , Byass P , Amek N , van Eijk A , Slutsker L , Vulule J , Odhiambo FO , Phillips-Howard PA , Lindblade KA , Laserson KF , Hamel MJ . PLoS One 2014 9 (9) e106197 Recent global malaria burden modeling efforts have produced significantly different estimates, particularly in adult malaria mortality. To measure malaria control progress, accurate malaria burden estimates across age groups are necessary. We determined age-specific malaria mortality rates in western Kenya to compare with recent global estimates. We collected data from 148,000 persons in a health and demographic surveillance system from 2003-2010. Standardized verbal autopsies were conducted for all deaths; probable cause of death was assigned using the InterVA-4 model. Annual malaria mortality rates per 1,000 person-years were generated by age group. Trends were analyzed using Poisson regression. From 2003-2010, in children <5 years the malaria mortality rate decreased from 13.2 to 3.7 per 1,000 person-years; the declines were greatest in the first three years of life. In children 5-14 years, the malaria mortality rate remained stable at 0.5 per 1,000 person-years. In persons ≥15 years, the malaria mortality rate decreased from 1.5 to 0.4 per 1,000 person-years. The malaria mortality rates in young children and persons aged ≥15 years decreased dramatically from 2003-2010 in western Kenya, but rates in older children have not declined. Sharp declines in some age groups likely reflect the national scale up of malaria control interventions and rapid expansion of HIV prevention services. These data highlight the importance of age-specific malaria mortality ascertainment and support current strategies to include all age groups in malaria control interventions. |
Determinants and coverage of vaccination in children in Western Kenya from a 2003 cross-sectional survey
Calhoun LM , van Eijk AM , Lindblade KA , Odhiambo FO , Wilson ML , Winterbauer E , Slutsker L , Hamel MJ . Am J Trop Med Hyg 2013 90 (2) 234-41 This study assesses full and timely vaccination coverage and factors associated with full vaccination in children ages 12-23 months in Gem, Nyanza Province, Kenya in 2003. A simple random sample of 1,769 households was selected, and guardians were invited to bring children under 5 years of age to participate in a survey. Full vaccination coverage was 31.1% among 244 children. Only 2.2% received all vaccinations in the target month for each vaccination. In multivariate logistic regression, children of mothers of higher parity (odds ratio [OR] = 0.27, 95% confidence interval [95% CI] = 0.13-0.65, P ≤ 0.01), children of mothers with lower maternal education (OR = 0.35, 95% CI = 0.13-0.97, P ≤ 0.05), or children in households with the spouse absent versus present (OR = 0.40, 95% CI = 0.17-0.91, P ≤ 0.05) were less likely to be fully vaccinated. These data serve as a baseline from which changes in vaccination coverage will be measured as interventions to improve vaccination timeliness are introduced. |
An analysis of pregnancy-related mortality in the KEMRI/CDC Health and Demographic Surveillance System in western Kenya
Desai M , Phillips-Howard PA , Odhiambo FO , Katana A , Ouma P , Hamel MJ , Omoto J , Macharia S , van Eijk A , Ogwang S , Slutsker L , Laserson KF . PLoS One 2013 8 (7) e68733 BACKGROUND: Pregnancy-related (PR) deaths are often a result of direct obstetric complications occurring at childbirth. METHODS AND FINDINGS: To estimate the burden of and characterize risk factors for PR mortality, we evaluated deaths that occurred between 2003 and 2008 among women of childbearing age (15 to 49 years) using Health and Demographic Surveillance System data in rural western Kenya. WHO ICD definition of PR mortality was used: "the death of a woman while pregnant or within 42 days of termination of pregnancy, irrespective of the cause of death". In addition, symptoms and events at the time of death were examined using the WHO verbal autopsy methodology. Deaths were categorized as either (i) directly PR: main cause of death was ascribed as obstetric, or (ii) indirectly PR: main cause of death was non-obstetric. Of 3,223 deaths in women 15 to 49 years, 249 (7.7%) were PR. One-third (34%) of these were due to direct obstetric causes, predominantly postpartum hemorrhage, abortion complications and puerperal sepsis. Two-thirds were indirect; three-quarters were attributable to human immunodeficiency virus (HIV/AIDS), malaria and tuberculosis. Significantly more women who died in lower socio-economic groups sought care from traditional birth attendants (p = 0.034), while less impoverished women were more likely to seek hospital care (p = 0.001). The PR mortality ratio over the six years was 740 (95% CI 651-838) per 100,000 live births, with no evidence of reduction over time (chi(2) linear trend = 1.07; p = 0.3). CONCLUSIONS: These data supplement current scanty information on the relationship between infectious diseases and poor maternal outcomes in Africa. They indicate low uptake of maternal health interventions in women dying during pregnancy and postpartum, suggesting improved access to and increased uptake of skilled obstetric care, as well as preventive measures against HIV/AIDS, malaria and tuberculosis among all women of childbearing age may help to reduce pregnancy-related mortality. |
Alcohol use, drunkenness and tobacco smoking in rural western Kenya
Lo TQ , Oeltmann JE , Odhiambo FO , Beynon C , Pevzner E , Cain KP , Laserson KF , Phillips-Howard PA . Trop Med Int Health 2013 18 (4) 506-15 OBJECTIVES: To describe the prevalence of smoking and alcohol use and abuse in an impoverished rural region of western Kenya. METHODS: Picked from a population-based longitudinal database of demographic and health census data, 72,292 adults (≥18 years) were asked to self-report their recent (within the past 30 days) and lifetime use of tobacco and alcohol and frequency of recent 'drunkenness'. RESULTS: Overall prevalence of ever smoking was 11.2% (11.0-11.5) and of ever drinking, 20.7% (20.4-21.0). The prevalence of current smoking was 6.3% (6.1-6.5); 5.7% (5.5-5.9) smoked daily. 7.3% (7.1-7.5) reported drinking alcohol within the past 30 days. Of these, 60.3% (58.9-61.6) reported being drunk on half or more of all drinking occasions. The percentage of current smokers rose with the number of drinking days in a month (P < 0.0001). Tobacco and alcohol use increased with decreasing socio-economic status and amongst women in the oldest age group (P < 0.0001). CONCLUSIONS: Tobacco and alcohol use are prevalent in this rural region of Kenya. Abuse of alcohol is common and likely influenced by the availability of cheap, home-manufactured alcohol. Appropriate evidence-based policies to reduce alcohol and tobacco use should be widely implemented and complemented by public health efforts to increase awareness of their harmful effects. |
Mortality trends from 2003 to 2009 among adolescents and young adults in rural western Kenya using a health and demographic surveillance system
Phillips-Howard PA , Odhiambo FO , Hamel M , Adazu K , Ackers M , van Eijk AM , Orimba V , Hoog AV , Beynon C , Vulule J , Bellis MA , Slutsker L , de Cock K , Breiman R , Laserson KF . PLoS One 2012 7 (11) e47017 BACKGROUND: Targeted global efforts to improve survival of young adults need information on mortality trends; contributions from health and demographic surveillance system (HDSS) are required. METHODS AND FINDINGS: This study aimed to explore changing trends in deaths among adolescents (15-19 years) and young adults (20-24 years), using census and verbal autopsy data in rural western Kenya using a HDSS. Mid-year population estimates were used to generate all-cause mortality rates per 100,000 population by age and gender, by communicable (CD) and non-communicable disease (NCD) causes. Linear trends from 2003 to 2009 were examined. In 2003, all-cause mortality rates of adolescents and young adults were 403 and 1,613 per 100,000 population, respectively, among females; and 217 and 716 per 100,000, respectively, among males. CD mortality rates among females and males 15-24 years were 500 and 191 per 100,000 (relative risk [RR] 2.6; 95% confidence intervals [CI] 1.7-4.0; p<0.001). NCD mortality rates in same aged females and males were similar (141 and 128 per 100,000, respectively; p = 0.76). By 2009, young adult female all-cause mortality rates fell 53% (chi(2) for linear trend 30.4; p<0.001) and 61.5% among adolescent females (chi(2) for linear trend 11.9; p<0.001). No significant CD mortality reductions occurred among males or for NCD mortality in either gender. By 2009, all-cause, CD, and NCD mortality rates were not significantly different between males and females, and among males, injuries equalled HIV as the top cause of death. CONCLUSIONS: This study found significant reductions in adolescent and young adult female mortality rates, evidencing the effects of targeted public health programmes, however, all-cause and CD mortality rates among females remain alarmingly high. These data underscore the need to strengthen programmes and target strategies to reach both males and females, and to promote NCD as well as CD initiatives to reduce the mortality burden amongst both gender. |
Profile: The KEMRI/CDC Health and Demographic Surveillance System--Western Kenya
Odhiambo FO , Laserson KF , Sewe M , Hamel MJ , Feikin DR , Adazu K , Ogwang S , Obor D , Amek N , Bayoh N , Ombok M , Lindblade K , Desai M , Ter Kuile F , Phillips-Howard P , van Eijk AM , Rosen D , Hightower A , Ofware P , Muttai H , Nahlen B , Decock K , Slutsker L , Breiman RF , Vulule JM . Int J Epidemiol 2012 41 (4) 977-87 The KEMRI/Centers for Disease Control and Prevention (CDC) Health and Demographic Surveillance System (HDSS) is located in Rarieda, Siaya and Gem Districts (Siaya County), lying northeast of Lake Victoria in Nyanza Province, western Kenya. The KEMRI/CDC HDSS, with approximately 220 000 inhabitants, has been the foundation for a variety of studies, including evaluations of insecticide-treated bed nets, burden of diarrhoeal disease and tuberculosis, malaria parasitaemia and anaemia, treatment strategies and immunological correlates of malaria infection, and numerous HIV, tuberculosis, malaria and diarrhoeal disease treatment and vaccine efficacy and effectiveness trials for more than a decade. Current studies include operations research to measure the uptake and effectiveness of the programmatic implementation of integrated malaria control strategies, HIV services, newly introduced vaccines and clinical trials. The HDSS provides general demographic and health information (such as population age structure and density, fertility rates, birth and death rates, in- and out-migrations, patterns of health care access and utilization and the local economics of health care) as well as disease- or intervention-specific information. The HDSS also collects verbal autopsy information on all deaths. Studies take advantage of the sampling frame inherent in the HDSS, whether at individual, household/compound or neighbourhood level. |
Intermittent preventive treatment in infants for the prevention of malaria in rural Western Kenya: a randomized, double-blind placebo-controlled trial
Odhiambo FO , Hamel MJ , Williamson J , Lindblade K , ter Kuile FO , Peterson E , Otieno P , Kariuki S , Vulule J , Slutsker L , Newman RD . PLoS One 2010 5 (4) e10016 BACKGROUND: Intermittent preventive treatment in infants (IPTi) with sulphadoxine-pyrimethamine (SP) for the prevention of malaria has shown promising results in six trials. However, resistance to SP is rising and alternative drug combinations need to be evaluated to better understand the role of treatment versus prophylactic effects. METHODS: Between March 2004 and March 2008, in an area of western Kenya with year round malaria transmission with high seasonal intensity and high usage of insecticide-treated nets, we conducted a randomized, double-blind placebo-controlled trial with SP plus 3 days of artesunate (SP-AS3), 3 days of amodiaquine-artesunate (AQ3-AS3), or 3 days of short-acting chlorproguanil-dapsone (CD3) administered at routine expanded programme of immunization visits (10 weeks, 14 weeks and 9 months). PRINCIPAL FINDINGS: 1,365 subjects were included in the analysis. The incidence of first or only episode of clinical malaria during the first year of life (primary endpoint) was 0.98 episodes/person-year in the placebo group, 0.74 in the SP-AS3 group, 0.76 in the AQ3-AS3 group, and 0.82 in the CD3 group. The protective efficacy (PE) and 95% confidence intervals against the primary endpoint were: 25.7% (6.3, 41.1); 25.9% (6.8, 41.0); and 16.3% (-5.2, 33.5) in the SP-AS3, AQ3-AS3, and CD3 groups, respectively. The PEs for moderate-to-severe anaemia were: 27.5% (-6.9, 50.8); 23.1% (-11.9, 47.2); and 11.4% (-28.6, 39.0). The duration of the protective effect remained significant for up to 5 to 8 weeks for SP-AS3 and AQ3-AS3. There was no evidence for a sustained beneficial or rebound effect in the second year of life. All regimens were well tolerated. CONCLUSIONS: These results support the view that IPTi with long-acting regimens provide protection against clinical malaria for up to 8 weeks even in the presence of high ITN coverage, and that the prophylactic rather than the treatment effect of IPTi appears central to its protective efficacy. |
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