The spread of obesity in a social network.
نویسندگان
چکیده
To the Editor: In the report on the spread of obesity in a social network, by Christakis and Fow ler, and the accompanying editorial by Barabási (July 26 issue),1,2 variables of social and economic status (SES) are not mentioned. Social networks conceal a high degree of social homogeneity — that is, people are more likely to network with people at similar income and educational levels — and we suspect that they may operate differently in dif ferent contexts. For example, the way a social net work affects the incidence of obesity in a commu nity where most people have a low educational level and cannot afford a healthy diet is likely to differ from the way it affects an affluent and well informed community. In 2000, obesity in the Unit ed States was reported to be highest among black women and people who had not completed high school,3 and among black women, a low socioeco nomic position predicts an early onset of obesi ty.4 SES variables should be included in any inter pretive model, and public health policies for the prevention of obesity should take into account the SES characteristics of the communities they are supposed to benefit.5
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ورودعنوان ژورنال:
- The New England journal of medicine
دوره 357 18 شماره
صفحات -
تاریخ انتشار 2007