Participants were included in the analytical sample if they were 20 years or older . Participants were further excluded if they were pregnant or had missing body mass index leaving 48,003 participants. Participants with missing data for lifestyle factors , physiological health risk factors , social/mental factors , physical factors ; obesity) and general health status were excluded from the analytical dataset, leaving 28,306 participants.
To make the follow-up more comparable between NHANES III and continuous, five-year mortality status was determined using public access National Center for Health Statistics Mortality Linkage Files with follow-up to December 31 at years 2006, 2011, 2015 and 2019. Follow-ups were truncated at 5 years. Deaths that occurred after a follow-up of greater than 5 years were recoded as censored events.
Social/Mental–lack of health insurance; low education; food insecurity; low income; use of mental health medicationGeneral self-rated health reported as: excellent, very good, good, fair and poor, was re-categorized as poor or not poor self-rated health.Physical activity was self-reported as the amount of moderate/vigorous leisure time physical activity over the past month. Those reporting none were categorized as ‘No Physical Activity’.