National Health and Nutrition Examination Survey 2017-March 2020 Prepandemic Data Files-Development of Files and Prevalence Estimates for Selected Health Outcomes.
National Health and Nutrition Examination Survey 2017-March 2020 Prepandemic Data Files-Development of Files and Prevalence Estimates for Selected Health Outcomes.
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DOI：
10.15620/cdc:106273
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发表时间：
2021-06-14
影响因子：
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通讯作者：
Akinbami, Lara J
中科院分区：
文献类型：
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作者：
Stierman, Bryan;Afful, Joseph;Akinbami, Lara J
背景与目的：2020年3月，2019年冠状病毒病（COVID-19）大流行中断了全国健康与营养检查调查（NHANES）的实地行动。由于2019-2020年部分周期（以下简称2019-2020年3月）收集的数据不具有全国代表性，因此将其与先前发布的2017-2018年数据相结合，得出具有全国代表性的估计数。本报告解释了2017年至2020年3月大流行前数据文件的创建，提供了文件使用的建议和限制，并根据这些文件提出了对选定健康结果的患病率估计。方法：将2019-2020年的主要抽样单位（psu）重新分配到2015-2018年的样本设计层，并结合2017-2018年的数据创建一个数据集，可用于计算具有全国代表性的估计。创建了一个psu水平调整因子来平衡每个阶层对总调查样本的贡献，并将其应用于参与者的基础权重。访谈权和考试权由调整后的基准权计算。通过比较加权NHANES 2017- 2020年3月大流行前样本的人口统计学特征与2018年5年美国社区调查的全国代表性估计，评估了最终访谈权重的表现。对选定的健康结果计算患病率估计值和95%置信区间。结果：2-19岁儿童和青少年肥胖患病率为19.7%，一颗或多颗乳牙或恒牙未治疗或修复的龋患病率为46.0%。在20岁及以上的成年人中，年龄调整后的肥胖患病率为41.9%，重度肥胖患病率为9.2%，糖尿病患病率为14.8%。在18岁及以上的成年人中，年龄调整后的高血压患病率为45.1%。在65岁及以上的成年人中，年龄调整后的全牙脱落率为13.8%。结论：psu水平调整因子和额外的加权调整使2017年至2020年3月大流行前数据文件中具有全国代表性的估计成为可能；这是在COVID-19广泛传播之前收集的最后一次NHANES数据。
Background and objectives: In March 2020, the coronavirus disease 2019 (COVID-19) pandemic halted National Health and Nutrition Examination Survey (NHANES) field operations. As data collected in the partial 2019-2020 cycle (herein referred to as 2019-March 2020) are not nationally representative, they were combined with previously released 2017-2018 data to produce nationally representative estimates. This report explains the creation of the 2017-March 2020 prepandemic data files, provides recommendations for and limitations of the files' use, and presents prevalence estimates for selected health outcomes based on the files.Methods: The 2019-2020 primary sampling units (PSUs) were reassigned to the 2015-2018 sample design strata and combined with the 2017-2018 data to create a data set that could be used to calculate nationally representative estimates. A PSU-level adjustment factor was created to equalize the contribution of each stratum to the total survey sample and applied to participant base weights. Interview and examination weights were calculated from the adjusted base weights. The performance of final interview weights was assessed by comparing the demographic characteristics of the weighted NHANES 2017-March 2020 prepandemic sample with nationally representative estimates from the 2018 5-year American Community Survey. Prevalence estimates and 95% confidence intervals were calculated for selected health outcomes.Results: Among children and adolescents aged 2-19 years, the prevalence of obesity was 19.7% and the prevalence of untreated or restored dental caries in one or more primary or permanent teeth was 46.0%. Among adults aged 20 and over, the age-adjusted prevalence of obesity was 41.9%, severe obesity was 9.2%, and diabetes was 14.8%. Among adults aged 18 and over, the age-adjusted prevalence of hypertension was 45.1%. Among adults aged 65 and over, the age-adjusted prevalence of complete tooth loss was 13.8%.Conclusion: A PSU-level adjustment factor and additional weighting adjustments made nationally representative estimates from the 2017-March 2020 prepandemic data files possible; this was the last NHANES data collected before widespread transmission of COVID-19.