Harlem Longitudinal Study of Urban Black Youth, 1968-1994

This 26-year longitudinal study, begun in 1968, involved the collection of a broad array of data concerning physical, psychological, and social aspects of health among a representative community sample of urban African-American adolescents. More specifically, the study aimed to determine the extent and direction of change in health status among African-American adolescents and youth; to identify the health problems most subject to change; to examine the initiation process and prevalence of drug use among African-American adolescents; to assess the impact of possible mediating variables such as family background characteristics, role attainment, social influences and psychosocial attitudes on drug use; and to examine the ways in which drug use affects the expected sequence of health, growth, and development.
The community representative sample consisted of 668 African-American male (351) and female (317) participants ranging from 12 to 18 years of age, and residing in Central Harlem, New York City. The sample was gathered based on an area probability sampling of housing units in the designated area.
Data were collected in 1968-1970, 1975-1976, 1983-1984, 1989-1990, and 1993-1994. During the 1983-1984 follow-up data collection emphasized patterns of nonmedical drug use and the effects of those patterns on subsequent health. Data collection during the 1989-1990 follow-up shifted focus to HIV-related issues including knowledge of its existence, attitudes toward HIV-infected people, and risk behaviors. Blood specimens was included in the final two waves of data collection. Variables assessed included health (physical, psycho-physical, and emotional, self-attitudes, aspirations, expectations, and actual educational achievement); patterns of non-medical drug-use; and HIV-related issues.
The Murray Research Archive has numeric file data for five waves of data collection. The contributor will not allow the sample to be followed up by researchers affiliated with the Murray Archive.

本项始于1968年的26年纵向研究，针对城市非裔青少年的代表性社区样本，收集了与健康的生理、心理及社会层面相关的多维度数据。具体而言，本研究旨在明确非裔青少年与青年的健康状态变化幅度与方向；识别最易发生变化的健康问题；考察非裔青少年的药物使用起始过程与流行率；评估家庭背景特征、角色达成、社会影响及社会心理态度等潜在中介变量对药物使用的影响；同时探究药物使用如何影响健康、成长与发展的预期进程。
本研究的社区代表性样本共纳入668名非裔参与者，其中男性351名、女性317名，年龄介于12至18岁之间，均居住于纽约市中央哈莱姆地区。样本通过对指定区域内住房单元进行区域概率抽样的方式招募获得。
研究分别于1968-1970年、1975-1976年、1983-1984年、1989-1990年及1993-1994年开展数据收集。其中1983-1984年的随访数据收集重点为非医疗性药物使用模式及其对后续健康的影响；1989-1990年的随访数据收集则将重点转向艾滋病病毒（HIV）相关议题，包括对HIV的认知、对艾滋病感染者的态度以及高危行为。最后两轮数据收集纳入了血液标本。本次研究评估的变量涵盖健康维度（生理、心身及情绪层面）、自我态度、抱负、期望与实际教育成就、非医疗性药物使用模式，以及HIV相关议题。
默里研究档案馆（Murray Research Archive）存有本研究五轮数据收集的数值文件数据。但研究贡献方不允许隶属于该档案馆的研究人员对本样本进行后续随访。