Department of Internal Medicine, School of Medicine, University of Michigan.
Department of Economics, Institute for Social Research, Gerald R. Ford School of Public Policy, University of Michigan.
J Gerontol B Psychol Sci Soc Sci. 2018 Apr 16;73(suppl_1):S29-S37. doi: 10.1093/geronb/gbx155.
To determine whether the prevalence of cognitive limitation (CL) among Americans ages 55 to 69 years changed between 1998 and 2014, and to assess the trends in socioeconomic disparities in CL among groups defined by race/ethnicity, education, income, and wealth.
Logistic regression using 1998-2014 data from the biennial Health and Retirement Study, a nationally representative data set. CL is defined as a score of 0-11 on a 27-point cognitive battery of items focused on memory. Socioeconomic status (SES) measures are classified as quartiles.
In models controlling for age, gender, and previous cognitive testing, we find no significant change over time in the overall prevalence of CL, widening disparities in limitation by income and, in some cases, wealth, and improvements among non-Hispanic whites but not other racial/ethnic groups.
Among people 55-69, rates of CL are many times higher for groups with lower SES than those with higher SES, and recent trends show little indication that the gaps are narrowing.
确定 55 至 69 岁美国人的认知障碍(CL)患病率在 1998 年至 2014 年间是否发生了变化,并评估按种族/民族、教育、收入和财富划分的群体中 CL 在社会经济差异方面的趋势。
使用来自两年一次的健康与退休研究的 1998 年至 2014 年的数据进行逻辑回归,这是一个具有全国代表性的数据组。CL 定义为 27 项专注于记忆的认知测试项目中得分为 0-11。社会经济地位(SES)衡量标准分为四分位数。
在控制年龄、性别和先前认知测试的模型中,我们没有发现总体 CL 患病率随时间的显著变化,收入和在某些情况下财富方面的限制差距扩大,以及非西班牙裔白人的改善,但其他种族/族裔群体则没有。
在 55-69 岁的人群中,社会经济地位较低的群体的 CL 发生率要比社会经济地位较高的群体高得多,最近的趋势表明差距没有缩小的迹象。