Last data update: Jan 27, 2025. (Total: 48650 publications since 2009)
Records 1-4 (of 4 Records) |
Query Trace: Chang GC[original query] |
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Hazardous alcohol use and HIV indicators in six African countries: results from the Population-based HIV Impact Assessments, 2015-2017
Chang GC , West CA , Kim E , Low AJ , Lancaster KE , Behel SS , Hong SY , Miller LA , Silver R , Mgomella GS , Imaa J , Maokola WM , Carpino T , Hrusa G , Bray RM , Mwila A , Musuka G , O'Connell C , McCracken S , Voetsch AC . J Int AIDS Soc 2022 25 (11) e26029 INTRODUCTION: Hazardous alcohol use (HAU), defined as a pattern of alcohol consumption that increases the risk of harmful consequences for the user or others, is associated with an elevated risk of human immunodeficiency virus (HIV) infection and poor health outcomes. We describe the association between people living with HIV (PLHIV) who report HAU and key HIV indicators. Gaps in current literature in estimating HAU on HIV outcomes at the regional level of Eastern and Southern Africa still exist and our analysis aims to address this issue. METHODS: We used weighted pooled data (2015-2017) from the nationally representative Population-based HIV Impact Assessments among adults who provided written consent aged 18-59 years from Eswatini, Malawi, Namibia, Tanzania, Zambia and Zimbabwe. We estimated differences in the prevalence of HIV infection and The Joint United Nations Programme on HIV and AIDS (UNAIDS) 90-90-90 indicators between PLHIV by HAU status using log-binomial regression, stratified by sex. HAU was determined using the Alcohol Use Identification Test-Consumption. RESULTS: Among the 9755 women and 4444 men who tested HIV positive, 6.6% of women and 21.8% of men engaged in HAU. Women who reported HAU were more likely to be HIV positive (adjusted prevalence ratio [aPR] = 1.31, 95% CI: 1.18-1.46) compared to those who did not report HAU. For the UNAIDS 90-90-90 targets, women who engaged in HAU were more likely to be unaware of their HIV-positive status (aPR = 1.22, 95% CI: 1.01-1.47) and not on antiretroviral therapy (ART) (aPR = 1.73, 95% CI: 1.26-2.37). Men who engaged in HAU were more likely to be unaware of their HIV-positive status (aPR = 1.56, 95% CI 1.39-1.76) and not on ART (aPR = 1.72, 95% CI: 1.30-2.29). No difference in viral load suppression, defined as <1000 copies/ml of HIV RNA, was seen by sex. CONCLUSIONS: PLHIV who engage in HAU were more likely to have suboptimal outcomes along the HIV care continuum when compared to those who did not engage in HAU. Targeted interventions, such as alcohol screening for HAU in HIV testing and treatment settings and HIV prevention efforts in alcohol-based venues, may help countries reach HIV epidemic control by 2030. |
Unawareness of HIV Infection Among Men Aged 15-59 Years in 13 Sub-Saharan African Countries: Findings From the Population-Based HIV Impact Assessments, 2015-2019
West CA , Chang GC , Currie DW , Bray R , Kinchen S , Behel S , McCullough-Sanden R , Low A , Bissek A , Shang JD , Ndongmo CB , Dokubo EK , Balachandra S , Lobognon LR , Dube L , Nuwagaba-Biribonwoha H , Li M , Pasipamire M , Getaneh Y , Lulseged S , Eshetu F , Kingwara L , Zielinski-Gutierrez E , Tlhomola M , Ramphalla P , Kalua T , Auld AF , Williams DB , Remera E , Rwibasira GN , Mugisha V , Malamba SS , Mushi J , Jalloh MF , Mgomella GS , Kirungi WL , Biraro S , Awor AC , Barradas DT , Mugurungi O , Rogers JH , Bronson M , Bodika SM , Ajiboye A , Gaffga N , Moore C , Patel HK , Voetsch AC . J Acquir Immune Defic Syndr 2021 87 S97-s106 BACKGROUND: Identifying men living with HIV in sub-Saharan Africa (SSA) is critical to end the epidemic. We describe the underlying factors of unawareness among men aged 15-59 years who ever tested for HIV in 13 SSA countries. METHODS: Using pooled data from the nationally representative Population-based HIV Impact Assessments, we fit a log-binomial regression model to identify characteristics related to HIV positivity among HIV-positive unaware and HIV-negative men ever tested for HIV. RESULTS: A total of 114,776 men were interviewed and tested for HIV; 4.4% were HIV-positive. Of those, 33.7% were unaware of their HIV-positive status, (range: 20.2%-58.7%, in Rwanda and Cote d'Ivoire). Most unaware men reported they had ever received an HIV test (63.0%). Age, region, marital status, and education were significantly associated with HIV positivity. Men who had HIV-positive sexual partners (adjusted prevalence ratio [aPR]: 5.73; confidence interval [95% CI]: 4.13 to 7.95) or sexual partners with unknown HIV status (aPR: 2.32; 95% CI: 1.89 to 2.84) were more likely to be HIV-positive unaware, as were men who tested more than 12 months compared with HIV-negative men who tested within 12 months before the interview (aPR: 1.58; 95% CI: 1.31 to 1.91). Tuberculosis diagnosis and not being circumcised were also associated with HIV positivity. CONCLUSION: Targeting subgroups of men at risk for infection who once tested negative could improve yield of testing programs. Interventions include improving partner testing, frequency of testing, outreach and educational strategies, and availability of HIV testing where men are accessing routine health services. |
Countries with delayed COVID-19 introduction - characteristics, drivers, gaps, and opportunities.
Li Z , Jones C , Ejigu GS , George N , Geller AL , Chang GC , Adamski A , Igboh LS , Merrill RD , Ricks P , Mirza SA , Lynch M . Global Health 2021 17 (1) 28 BACKGROUND: Three months after the first reported cases, COVID-19 had spread to nearly 90% of World Health Organization (WHO) member states and only 24 countries had not reported cases as of 30 March 2020. This analysis aimed to 1) assess characteristics, capability to detect and monitor COVID-19, and disease control measures in these 24 countries, 2) understand potential factors for the reported delayed COVID-19 introduction, and 3) identify gaps and opportunities for outbreak preparedness, particularly in low and middle-income countries (LMICs). We collected and analyzed publicly available information on country characteristics, COVID-19 testing, influenza surveillance, border measures, and preparedness activities in these countries. We also assessed the association between the temporal spread of COVID-19 in all countries with reported cases with globalization indicator and geographic location. RESULTS: Temporal spreading of COVID-19 was strongly associated with countries' globalization indicator and geographic location. Most of the 24 countries with delayed COVID-19 introduction were LMICs; 88% were small island or landlocked developing countries. As of 30 March 2020, only 38% of these countries reported in-country COVID-19 testing capability, and 71% reported conducting influenza surveillance during the past year. All had implemented two or more border measures, (e.g., travel restrictions and border closures) and multiple preparedness activities (e.g., national preparedness plans and school closing). CONCLUSIONS: Limited testing capacity suggests that most of the 24 delayed countries may have lacked the capability to detect and identify cases early through sentinel and case-based surveillance. Low global connectedness, geographic isolation, and border measures were common among these countries and may have contributed to the delayed introduction of COVID-19 into these countries. This paper contributes to identifying opportunities for pandemic preparedness, such as increasing disease detection, surveillance, and international collaborations. As the global situation continues to evolve, it is essential for countries to improve and prioritize their capacities to rapidly prevent, detect, and respond, not only for COVID-19, but also for future outbreaks. |
Imputation and subset-based association analysis across different cancer types identifies multiple independent risk loci in the TERT-CLPTM1L region on chromosome 5p15.33.
Wang Z , Zhu B , Zhang M , Parikh H , Jia J , Chung CC , Sampson JN , Hoskins JW , Hutchinson A , Burdette L , Ibrahim A , Hautman C , Raj PS , Abnet CC , Adjei AA , Ahlbom A , Albanes D , Allen NE , Ambrosone CB , Aldrich M , Amiano P , Amos C , Andersson U , Andriole G Jr , Andrulis IL , Arici C , Arslan AA , Austin MA , Baris D , Barkauskas DA , Bassig BA , Beane Freeman LE , Berg CD , Berndt SI , Bertazzi PA , Biritwum RB , Black A , Blot W , Boeing H , Boffetta P , Bolton K , Boutron-Ruault MC , Bracci PM , Brennan P , Brinton LA , Brotzman M , Bueno-de-Mesquita HB , Buring JE , Butler MA , Cai Q , Cancel-Tassin G , Canzian F , Cao G , Caporaso NE , Carrato A , Carreon T , Carta A , Chang GC , Chang IS , Chang-Claude J , Che X , Chen CJ , Chen CY , Chen CH , Chen C , Chen KY , Chen YM , Chokkalingam AP , Chu LW , Clavel-Chapelon F , Colditz GA , Colt JS , Conti D , Cook MB , Cortessis VK , Crawford ED , Cussenot O , Davis FG , De Vivo I , Deng X , Ding T , Dinney CP , Di Stefano AL , Diver WR , Duell EJ , Elena JW , Fan JH , Feigelson HS , Feychting M , Figueroa JD , Flanagan AM , Fraumeni JF Jr , Freedman ND , Fridley BL , Fuchs CS , Gago-Dominguez M , Gallinger S , Gao YT , Gapstur SM , Garcia-Closas M , Garcia-Closas R , Gastier-Foster JM , Gaziano JM , Gerhard DS , Giffen CA , Giles GG , Gillanders EM , Giovannucci EL , Goggins M , Gokgoz N , Goldstein AM , Gonzalez C , Gorlick R , Greene MH , Gross M , Grossman HB , Grubb R 3rd , Gu J , Guan P , Haiman CA , Hallmans G , Hankinson SE , Harris CC , Hartge P , Hattinger C , Hayes RB , He Q , Helman L , Henderson BE , Henriksson R , Hoffman-Bolton J , Hohensee C , Holly EA , Hong YC , Hoover RN , Hosgood HD 3rd , Hsiao CF , Hsing AW , Hsiung CA , Hu N , Hu W , Hu Z , Huang MS , Hunter DJ , Inskip PD , Ito H , Jacobs EJ , Jacobs KB , Jenab M , Ji BT , Johansen C , Johansson M , Johnson A , Kaaks R , Kamat AM , Kamineni A , Karagas M , Khanna C , Khaw KT , Kim C , Kim IS , Kim YH , Kim YC , Kim YT , Kang CH , Jung YJ , Kitahara CM , Klein AP , Klein R , Kogevinas M , Koh WP , Kohno T , Kolonel LN , Kooperberg C , Kratz CP , Krogh V , Kunitoh H , Kurtz RC , Kurucu N , Lan Q , Lathrop M , Lau CC , Lecanda F , Lee KM , Lee MP , Le Marchand L , Lerner SP , Li D , Liao LM , Lim WY , Lin D , Lin J , Lindstrom S , Linet MS , Lissowska J , Liu J , Ljungberg B , Lloreta J , Lu D , Ma J , Malats N , Mannisto S , Marina N , Mastrangelo G , Matsuo K , McGlynn KA , McKean-Cowdin R , McNeill LH , McWilliams RR , Melin BS , Meltzer PS , Mensah JE , Miao X , Michaud DS , Mondul AM , Moore LE , Muir K , Niwa S , Olson SH , Orr N , Panico S , Park JY , Patel AV , Patino-Garcia A , Pavanello S , Peeters PH , Peplonska B , Peters U , Petersen GM , Picci P , Pike MC , Porru S , Prescott J , Pu X , Purdue MP , Qiao YL , Rajaraman P , Riboli E , Risch HA , Rodabough RJ , Rothman N , Ruder AM , Ryu JS , Sanson M , Schned A , Schumacher FR , Schwartz AG , Schwartz KL , Schwenn M , Scotlandi K , Seow A , Serra C , Serra M , Sesso HD , Severi G , Shen H , Shen M , Shete S , Shiraishi K , Shu XO , Siddiq A , Sierrasesumaga L , Sierri S , Sihoe AD , Silverman DT , Simon M , Southey MC , Spector L , Spitz M , Stampfer M , Stattin P , Stern MC , Stevens VL , Stolzenberg-Solomon RZ , Stram DO , Strom SS , Su WC , Sund M , Sung SW , Swerdlow A , Tan W , Tanaka H , Tang W , Tang ZZ , Tardon A , Tay E , Taylor PR , Tettey Y , Thomas DM , Tirabosco R , Tjonneland A , Tobias GS , Toro JR , Travis RC , Trichopoulos D , Troisi R , Truelove A , Tsai YH , Tucker MA , Tumino R , Van Den Berg D , Van Den Eeden SK , Vermeulen R , Vineis P , Visvanathan K , Vogel U , Wang C , Wang C , Wang J , Wang SS , Weiderpass E , Weinstein SJ , Wentzensen N , Wheeler W , White E , Wiencke JK , Wolk A , Wolpin BM , Wong MP , Wrensch M , Wu C , Wu T , Wu X , Wu YL , Wunder JS , Xiang YB , Xu J , Yang HP , Yang PC , Yatabe Y , Ye Y , Yeboah ED , Yin Z , Ying C , Yu CJ , Yu K , Yuan JM , Zanetti KA , Zeleniuch-Jacquotte A , Zheng W , Zhou B , Mirabello L , Savage SA , Kraft P , Chanock SJ , Yeager M , Landi MT , Shi J , Chatterjee N , Amundadottir LT . Hum Mol Genet 2014 23 (24) 6616-33 ![]() Genome-wide association studies (GWAS) have mapped risk alleles for at least ten distinct cancers to a small region of 63,000 bp on chromosome 5p15.33. This region harbors the TERT and CLPTM1L genes; the former encodes the catalytic subunit of telomerase reverse transcriptase and the latter may play a role in apoptosis. To investigate further the genetic architecture of common susceptibility alleles in this region, we conducted an agnostic subset-based meta-analysis (ASSET) across six distinct cancers in 34,248 cases and 45,036 controls. Based on sequential conditional analysis, we identified as many as six independent risk loci marked by common single nucleotide polymorphisms (SNPs): five in the TERT gene (region 1: rs7726159, P=2.10x10-39; region 3: rs2853677, P=3.30x10-36 and PConditional=2.36x10-8; region 4: rs2736098, P=3.87x10-12 and PConditional=5.19x10-6, region 5: rs13172201, P=0.041 and PConditional=2.04x10-6; and region 6: rs10069690, P=7.49x10-15 and PConditional=5.35x10-7) and one in the neighboring CLPTM1L gene (region 2: rs451360; P=1.90x10-18 and PConditional=7.06x10-16). Between three and five cancers mapped to each independent locus with both risk-enhancing and protective effects. Allele specific effects on DNA methylation were seen for a subset of risk loci indicating that methylation and subsequent effects on gene expression may contribute to the biology of risk variants on 5p15.33. Our results provide strong support for extensive pleiotropy across this region of 5p15.33, to an extent not previously observed in other cancer susceptibility loci. |
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