title: Assessing homeless population size through the use of emergency and transitional shelter services in 1998: results from the analysis of administrative data from nine US jurisdictions.
abstract: OBJECTIVE
  This study reports findings from the first-ever systematic enumeration of homeless population size using data previously collected from administrative records of homeless services providers in nine US jurisdictions over a one year period. As such, it provides the basis for establishing an ongoing measure of the parameters of the homeless population and for tracking related trends on the use of homeless services over time.
  
  
  METHODS
  Each participating jurisdiction collected data through its homeless services management information systems for persons and families who use emergency shelter and transitional housing. The jurisdictions organized the data by a standardized reporting format. These data form the basis for reporting homeless population size, both in raw numbers and as adjusted for each jurisdiction's overall population size, as well as the rate of turnover and average annual length of stay in emergency shelters and transitional housing.
  
  
  RESULTS
  Individual jurisdictions had annual rates of sheltered homelessness ranging from 0.1% to 2.1% of their overall population, and 1.3% to 10.2% of their poverty population. Annual population size was 2.5 to 10.2 times greater than the point-prevalent population size. Results are broken down for adults and families.
  
  
  CONCLUSIONS
  The prevalence of homelessness varies greatly among the jurisdictions included in this study, and possible factors for this diversity are discussed. Future reports of this nature will furnish similar series of homeless enumerations across a growing number of jurisdictions, thereby providing a basis for exploring the effects of different contextual factors on local prevalence rates of homelessness.
authors.affiliation: Sociology Department, University of Pennsylvania, 3718 Locust Walk, Philadelphia, PA 19104, USA. metraux@sas.upenn.edu.
authors.forename: S
authors.initials: S
authors.lastname: Metraux
authors.forename: D
authors.initials: D
authors.lastname: Culhane
authors.forename: S
authors.initials: S
authors.lastname: Raphael
authors.forename: M
authors.initials: M
authors.lastname: White
authors.forename: C
authors.initials: C
authors.lastname: Pearson
authors.forename: E
authors.initials: E
authors.lastname: Hirsch
authors.forename: P
authors.initials: P
authors.lastname: Ferrell
authors.forename: S
authors.initials: S
authors.lastname: Rice
authors.forename: B
authors.initials: B
authors.lastname: Ritter
authors.forename: J S
authors.initials: JS
authors.lastname: Cleghorn
mesh_terms: D000328:Adult; D001509:Bed Occupancy / Q000706:statistics & numerical data; D002648:Child; D003625:Data Collection / Q000379:methods*; D003628:Database Management Systems; D003710:Demography; D005191:Family Characteristics; D006703:Ill-Housed Persons / Q000706:statistics & numerical data*; D006798:Housing / Q000706:statistics & numerical data*; D006801:Humans; D008331:Management Information Systems; D011153:Population; D015995:Prevalence; D014481:United States