Chicago Community Adult Health Study, 2001-2003

The Chicago Community Adult Health Study (CCAHS) consists of four interrelated components that were conducted simultaneously: (1) a survey of adult health on a probability sample of 3,105 Chicago adults, including direct physical measurements of their blood pressure and heart rate and of height, weight, waist and hip circumference, and leg length; (2) a biomedical supplement which collected blood and/or saliva samples on a subset of 661 survey respondents; (3) a community survey in which individuals described aspects of the social environment of all survey respondents' neighborhoods; and (4) a systematic social observation (SSO) of the blocks in which potential survey respondents resided, including a lost letter drop (Milgram et al. 1965) as an unobtrusive measure of neighborhood social capital/sense of responsibility to help others. The latter two extend a community survey and SSO of neighborhoods carried out by the Project on Human Development in Chicago Neighborhoods (PHDCN) in 1995. The adult health survey and the community survey were conducted jointly through face-to-face interviews with a stratified, multistage probability sample of 3,105 individuals aged 18 and over and living in the city of Chicago, with a response rate of 72 percent that is about the highest currently attainable in large urban areas. In addition, blood pressure, heart rate, and physical measurements (of height, weight, waist and hips, and leg length) were collected during the survey interview, and blood and saliva samples from 661 respondents or 60 percent of those doing the survey in the 80 "focal" neighborhood clusters (NCs). SSOs were conducted on 1,663 of the 1,672 city blocks on which each respondent lived. The CCAHS is the largest of five projects under the NIH-funded Michigan Interdisciplinary Center on Social Inequalities, Mind and Body Mind (#P50HD38986), one of five Mind-Body Centers funded by the National Institutes of Health in late 1999. This study will advance the understanding of socioeconomic and racial/ethnic disparities in health, a major priority of the Public Health Service and the National Institutes of Health. The PI-supplied summary mentions that the study is comprised of four components. However, for the purposes of this data release there are three distinct datasets. Demographic variables include age, birth year, race, ethnicity, number of children in the household, number of children living elsewhere, number of times the respondent has been married, and relationship status, religious preference, and sex.

芝加哥社区成人健康研究（CCAHS）包含四个同步开展的关联组件：（1）针对3105名芝加哥成人概率样本的成人健康调查，涵盖血压、心率、身高、体重、腰围、臀围及腿长的直接生理测量；（2）对661名调查受访者子集开展的生物医学补充调查，收集其血液和/或唾液样本；（3）社区调查，由个体描述所有受访者所在社区的社会环境特征；（4）对潜在受访者居住街区的系统性社会观察（SSO），包括采用遗失信件投放实验（Milgram et al. 1965）作为非介入性手段，测量社区社会资本及帮助他人的责任感。后两个组件是对1995年芝加哥社区人类发展项目（PHDCN）开展的社区调查与SSO的延伸。成人健康调查与社区调查通过面对面访谈联合实施，样本为3105名18岁及以上芝加哥城市居民的分层多阶段概率样本，应答率达72%，为当前大型城市区域可实现的最高水平之一。此外，调查访谈期间收集了血压、心率及生理测量数据（身高、体重、腰围、臀围、腿长），并从80个重点社区集群（NCs）中参与调查的受访者中选取661人（占该群体的60%）收集血液和唾液样本。SSO覆盖了所有受访者居住的1672个街区中的1663个。CCAHS是由美国国立卫生研究院（NIH）资助的密歇根社会不平等、心智与身体跨学科中心（项目编号P50HD38986）旗下五个项目中规模最大的一个，该中心是1999年末NIH资助的五个心智与身体中心之一。本研究将推动对健康领域社会经济及种族/族裔差异的理解，这是公共卫生服务部与NIH的核心优先事项。项目负责人提供的摘要指出研究包含四个组件，但本次数据发布包含三个独立数据集。人口统计学变量包括年龄、出生年份、种族、族裔、家庭子女数量、居住在其他地方的子女数量、婚姻次数、关系状态、宗教偏好及性别。