Department of Sociology and Criminology, The Pennsylvania State University, University Park, Pennsylvania, USA
Department of Sociology, Yale University, New Haven, Connecticut, USA.
BMJ Open. 2022 Jul 29;12(7):e060469. doi: 10.1136/bmjopen-2021-060469.
Obesity in the USA is more prevalent in younger cohorts than older cohorts and also more prevalent in the South and the Midwest than other regions. However, little research has examined the intersection of cohort patterns and regional differences in obesity. We address the knowledge gap by investigating net of age and period trends, how intercohort and intracohort patterns in obesity may depend on Census regions for black and white men and women.
DESIGN, SETTING AND PARTICIPANTS: A total of 1 020 412 non-Hispanic black and white respondents aged 20-69 were included from the 1982-2018 National Health Interview Survey.
Obesity is defined as body mass index ≥30 kg/m based on participant self-reported weight and height. Obesity ORs were calculated to estimate region-specific age, period and cohort patterns for each demographic group.
Although age and period trends in obesity were similar across regions for all demographic groups, cohort patterns depended on region of residence for white women. Specifically, for the white women cohorts born in 1955 or later, living in the South and the Midwest implied higher likelihood of obesity than their peers in other regions even after accounting for average regional differences. These cohorts' disadvantage seemed to persist and/or accumulate over the life course. Socioeconomic factors explained little average regional differences or region-specific cohort variation.
Our findings highlight the interdependence of the temporal and geographical processes in shaping obesity disparities.
与较年长的队列相比，美国的肥胖症在较年轻的队列中更为普遍，而且在南部和中西部地区比其他地区更为普遍。然而，很少有研究调查肥胖症的队列模式和区域差异的交叉点。我们通过调查年龄和时期趋势的净效果，来研究肥胖症的队列间和队列内模式如何可能取决于黑人和白人男性和女性的人口普查区域，从而填补了这一知识空白。
设计、设置和参与者：共纳入了来自 1982 年至 2018 年全国健康访谈调查的 1020412 名非西班牙裔黑人和白人 20-69 岁的受访者。
肥胖的定义是根据参与者自我报告的体重和身高，身体质量指数≥30kg/m。为每个人群计算肥胖的优势比，以估计每个年龄组的特定区域的年龄、时期和队列模式。
我们的研究结果强调了时间和地理过程在塑造肥胖差异方面的相互依赖性。
