Last data update: May 20, 2024. (Total: 46824 publications since 2009)
Records 1-3 (of 3 Records) |
Query Trace: Graber JE[original query] |
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Comparability of in-person and web screening: Does mode affect what households report
Graber JE , Williams D , Clark J . PLoS One 2022 17 (10) e0277017 Household screening is common when information about characteristics of household members is needed for selection of survey respondents. When key characteristics have a low prevalence, or are oversampled, this can result in a large number of sampled households screened, many of which have no persons selected. For in-person surveys this can be inefficient and costly, especially in an environment of declining response. A multimode design using a mail, push-to-web approach is an attractive alternative due to lower cost and high internet penetration. However, little is known about the comparable data quality properties between in-person and web modes. While in-person screening is considered a gold standard approach, respondents may fail to report household members and interviewers may unintentionally screen out reluctant respondents. Similarly, those self-responding sometimes fail to report unrelated household members or young children. In this study we compared in-person and web screening in the National Health and Nutrition Examination Survey. Households were randomly selected to complete a self-administered web screener and subsequently be screened by an interviewer during an in-person visit. We report on the comparability of household characteristics between modes to determine if web screening provides data equivalent to in-person screening. We examine time between the web and in-person screening to see if true change can account for differences. In the presence of conflicting data, we examine selection criteria based on the screening responses to see how inaccuracies affect selection status, or if inaccuracies or person omissions are systematically related to a specific mode. Approximately 93% (80/86) of households agreed on selection status between the web and in-person modes. Household composition matched fully for 84% (72/86) of households. These results indicate that web screening is a viable option enumerating households in population surveys. |
Differences in hypertension and stage II hypertension by demographic and risk factors, obtained by two different protocols in US adults: National Health and Nutrition Examination Survey, 2017-2018
Ostchega Y , Hughes JP , Kit B , Chen TC , Nwankwo T , Commodore-Mensah Y , Graber JE , Nguyen DT . Am J Hypertens 2022 35 (7) 619-626 OBJECTIVE: To compare prevalence of hypertension and stage II hypertension assessed by two blood pressure observation protocols. METHODS: Participants aged 18 years and older (n = 4,689) in the National Health and Nutrition Examination Survey (NHANES 2017-2018) had their blood pressure (BP) measured following two protocols: the legacy auscultation protocol [AP] and oscillometric protocol [OP]. The order of protocols was randomly assigned. Prevalence estimates for hypertension (BP 130/80 mm Hg or use of medication for hypertension) and stage II hypertension (BP 140/90 mm Hg) were determined overall, by demographics, and by risk factors for each protocol. Ratios (OP% AP%) and Kappa statistics were calculated. RESULTS: Age-adjusted hypertension prevalence was 44.5% (95% CI: 41.1%-48.0%) using OP and 45.1% (95%CI: 41.5%-48.7%) using AP, prevalence ratio=0.99, (95% CI=0.94-1.04)). Age-adjusted Stage II hypertension prevalence was 15.8% (95% CI: 13.6%-18.2%) using AP and 17.1% (95% CI: 14.7%-19.7%) using OP, prevalence ratio=0.92, (95% CI=0.81-1.04)). For both hypertension and Stage II hypertension, the prevalence ratios by demographics and by risk factors all included unity in their 95% CI, except for Stage II hypertension in adults 60+ years (ratio: 0.88 (95% CI: 0.78-0.98)). Kappa for agreement between protocols for hypertension and stage II hypertension were 0.75 (95% CI=0.71-0.79) and 0.67 (95% CI=0.61-0.72), respectively. CONCLUSIONS: In adults and for nearly all subcategories there were no significant differences in prevalence of hypertension and stage II hypertension between protocols, indicating that protocol change may not affect the national prevalence estimates of hypertension and stage II hypertension. |
The National Health and Nutrition Examination Survey (NHANES), 2021-2022: Adapting Data Collection in a COVID-19 Environment.
Paulose-Ram R , Graber JE , Woodwell D , Ahluwalia N . Am J Public Health 2021 111 (12) 2149-2156 The National Health and Nutrition Examination Survey (NHANES) is a unique source of national data on the health and nutritional status of the US population, collecting data through interviews, standard exams, and biospecimen collection. Because of the COVID-19 pandemic, NHANES data collection was suspended, with more than a year gap in data collection. NHANES resumed operations in 2021 with the NHANES 2021-2022 survey, which will monitor the health and nutritional status of the nation while adding to the knowledge of COVID-19 in the US population. This article describes the reshaping of the NHANES program and, specifically, the planning of NHANES 2021-2022 for data collection during the COVID-19 pandemic. Details are provided on how NHANES transformed its participant recruitment and data collection plans at home and at the mobile examination center to safely collect data in a COVID-19 environment. The potential implications for data users are also discussed. (Am J Public Health. 2021;111(12):2149-2156. https://doi.org/10.2105/AJPH.2021.306517). |
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