Link B G, Susser E, Stueve A, Phelan J, Moore R E, Struening E
Division of Epidemiology, School of Public Health, Columbia University, New York, NY.
Am J Public Health. 1994 Dec;84(12):1907-12. doi: 10.2105/ajph.84.12.1907.
Intense debate exists concerning the number of homeless people in the United States. Previous studies, counting currently homeless people, have provided point-prevalence estimates of homelessness but have been criticized on methodological grounds. This study reports lifetime and 5-year prevalence estimates of homelessness using a different methodological approach.
Random-digit dialing was used to interview 1507 adults living in households with telephones in the 48 contiguous states in the fall of 1990. Respondents were asked whether they had ever been homeless and if so, where they had slept while homeless.
Lifetime and 5-year prevalence of all types of homelessness combined were 14.0% (26 million people) and 4.6% (8.5 million people), respectively. Lifetime "literal homelessness" (sleeping in shelters, abandoned buildings, bus and train stations, etc.) was 7.4% (13.5 million people). Five-year (1985 through 1990) prevalence of self-reported homelessness among those who had ever been literally homeless was 3.1% (5.7 million people).
The magnitude of the problem of homelessness is much greater than most previous attempts to enumerate homeless people have led us to believe. This finding requires reconsideration of inferences about the causes of homelessness that were derived from point-prevalence studies of currently homeless people.
关于美国无家可归者的数量存在激烈争论。以往的研究对当前无家可归者进行了统计,提供了无家可归现象的时点患病率估计值,但在方法论上受到了批评。本研究采用不同的方法论方法报告了无家可归现象的终生患病率和5年患病率估计值。
1990年秋季,采用随机数字拨号法对居住在48个毗连州有电话家庭中的1507名成年人进行了访谈。受访者被问及他们是否曾经无家可归,如果是,他们在无家可归时睡在哪里。
所有类型无家可归现象的终生患病率和5年患病率分别为14.0%(2600万人)和4.6%(850万人)。终生“真正无家可归”(睡在收容所、废弃建筑、公交和火车站等)为7.4%(1350万人)。在曾经真正无家可归的人中,自我报告的无家可归现象的5年(1985年至1990年)患病率为3.1%(570万人)。
无家可归问题的严重程度比以往大多数统计无家可归者数量的尝试让我们相信的要大得多。这一发现需要重新考虑从对当前无家可归者的时点患病率研究中得出的关于无家可归原因的推断。