A health survey is a process where people are asked questions about their well-being, habits, and any health issues they may have. The aim is to gather information and understand people's overall health and lifestyles. Full definition
The study draws upon data from national health surveys conducted over the past few decades, some stretching back to 1971, which covered a few hundred thousand people. (sciencemag.org)
It uses a combined data set that integrates geographically - referenced national health surveys with local weather stations located across the entire country over a 30 - year period. (uncclearn.org)
This is a significant rate of return and established a record for health surveys in our breed, both in terms of rate of return and total numbers of responses. (ashgi.org)