Am J Epidemiol. 2021 Jan 4;190(1):21-30. doi: 10.1093/aje/kwaa018.
States adopt minimum wages to improve workers' economic circumstances and well-being. Many studies, but not all, find evidence of health benefits from higher minimum wages. This study used a rigorous "triple difference" strategy to identify the associations between state minimum wages and adult obesity, body mass index (weight (kg)/height (m)2), hypertension, diabetes, fair or poor health, and serious psychological distress. National Health Interview Survey data (United States, 2008-2015) on adults aged 25-64 years (n = 131,430) were linked to state policies to estimate the prevalence odds ratio or mean difference in these outcomes associated with a $1 increase in current and 2-year lagged minimum wage among less-educated adults overall and by sex, race/ethnicity, and age. In contrast to prior studies, there was no association between current minimum wage and health; however, 2-year lagged minimum wage was positively associated with the likelihood of obesity (prevalence odds ratio = 1.08, 95% confidence interval: 1.00, 1.16) and with elevated body mass index (mean difference = 0.27, 95% confidence interval: 0.04, 0.49). In subgroup models, current and 2-year lagged minimum wage were associated with a higher likelihood of obesity among male and non-White or Hispanic adults. The associations with hypertension also varied by sex and the timing of the exposure.
国家制定最低工资标准,以改善工人的经济状况和福祉。许多研究(但并非全部)都发现,提高最低工资标准对健康有益。本研究采用严格的“三重差分”策略,确定了州最低工资标准与成年人肥胖、体重指数(体重(kg)/身高(m)^2)、高血压、糖尿病、健康状况一般或较差以及严重心理困扰之间的关联。利用 2008-2015 年全国健康访谈调查数据(美国,25-64 岁成年人 n=131430),并与州政策相关联,以评估在受教育程度较低的成年人中,整体和按性别、种族/族裔和年龄划分的当前和两年滞后最低工资每增加 1 美元,这些结果的患病率比值比或平均值差异。与先前的研究不同,当前的最低工资与健康之间没有关联;然而,两年滞后的最低工资与肥胖的可能性呈正相关(患病率比值比=1.08,95%置信区间:1.00,1.16),并且与体重指数升高呈正相关(平均差异=0.27,95%置信区间:0.04,0.49)。在亚组模型中,当前和两年滞后的最低工资与男性和非白种人或西班牙裔成年人肥胖的可能性增加有关。高血压的相关性也因性别和暴露时间而异。