![]() Plus, all of the files are in SAS XPT format so you have to download, import, save, and merge before you can even think about starting an analysis. Manipulating NHANES data is challenging for beginners because of the sheer quantity of individual files and requirement for weighting. The best part? You can download almost all of NHANES data from the CDC website right now for free. ![]() Manuscripts using NHANES data have been published across the spectrum of medical journals, all the way up to NEJM. A few of these years are linked to National Death Index data, so you can assess risk factors at the time of the survey and use time-to-event mortality data to identify novel risk factors for death. ![]() ![]() For the past ~18 years it sampled different communities across the US in 2 year continuous cycles. NHANES is a robust, nationally-representative cross-sectional study. ![]()
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