"The 17,000 or so patients in this study were mostly middle-aged white people, upper- and middle-class, from San Diego."
It's true that there are a lot of variables when asking broad questions like what causes poor health, but it seems like the majority of the participants weren't of a lower-socioeconomic demographic, as indicated in the article.
It's true that there are a lot of variables when asking broad questions like what causes poor health, but it seems like the majority of the participants weren't of a lower-socioeconomic demographic, as indicated in the article.