Who are "the homeless"? Reconsidering the stability and composition of the homeless population
Who are "the homeless"? Reconsidering the stability and composition of the homeless population
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DOI：
10.2105/ajph.89.9.1334
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发表时间：
1999-09-01
影响因子：
12.7
通讯作者：
Link, BG
中科院分区：
文献类型：
--
作者：
Phelan, JC;Link, BG
目标.本研究评估了在何种程度上使用点流行率样本的偏见得出的结论无家可归的人。三个数据集和已发表的研究被用来检查导致点患病率偏差的条件的程度（无家可归人口的更替率，无家可归现象持续存在的可变性，以及个人特征和持久性之间的关联）表征无家可归者的人口。关于无家可归现象持续存在和无家可归者特征的普遍性研究与对以前无家可归者的研究结果进行比较。结果导致点患病率偏差的条件强烈表征无家可归的人口。此外，无家可归者的概况显着不同点流行率的研究和以前无家可归的人的研究。二？前者，无家可归的平均持续时间较长，样本中男子和少数民族的比例较高。非高中毕业生，和人的精神病住院，监禁和戒毒的历史，结论，依赖点患病率的样本，当这样的样本是广义超出目前无家可归的人口，导致高估的无家可归的持续性，无家可归的人口的特殊性，和个人残疾和异常的生活方式无家可归的人的患病率。
Objectives. This study assessed the extent to which the use of point-prevalence samples biases conclusions drawn about homeless people.Methods. Three data sets and published research were used to examine the degree to which conditions leading to point-prevalence bias (turnover in the homeless population, variability in the persistence of homelessness, and associations between personal characteristics and persistence) characterize the homeless population.Results were compared from point-prevalence studies concerning persistence of homelessness and characteristics of homeless people with those from a study of formerly homeless people. Results. Conditions leading to point-prevalence bias strongly characterize the homeless population. Moreover, profiles of homeless people differed dramatically between point-prevalence studies and the study of formerly homeless people. II? the former, average duration of homelessness was longer and samples included higher proportions of men, minorities. non-high school graduates, and people with histories of psychiatric hospitalization, incarceration, and detoxification,Conclusions, Reliance on point-prevalence samples, when such samples are generalized beyond the currently homeless population, leads to overestimations of the persistence of homelessness, the demographic distinctiveness of the homeless population, and the prevalence of personal disabilities and deviant lifestyles among homeless people.