title: Housing dynamics of the homeless: implications for a count.
abstract: Housing dynamics of homeless people limit all efforts to count them. Data on 60-day housing histories from a sample of homeless substance abusers in New Orleans show that homeless people spend relatively few nights in locations that would make them potentially countable, no matter how thorough the enumeration procedure.
mesh_terms: D000328:Adult; D000437:Alcoholism / Q000453:epidemiology; D015982:Bias; D016578:Crack Cocaine; D003430:Cross-Sectional Studies; D003710:Demography; D005260:Female; D006703:Ill-Housed Persons / Q000706:statistics & numerical data*; D006801:Humans; D015994:Incidence; D008145:Louisiana / Q000453:epidemiology; D008297:Male; D011638:Public Housing / Q000706:statistics & numerical data*; D019966:Substance-Related Disorders / Q000453:epidemiology; D014505:Urban Population / Q000706:statistics & numerical data*
chemical_list: D016578:Crack Cocaine