A study of risk factors for homelessness among the severely mentally i
ll was extended to include women, and a case-control study of 100 indi
gent women with schizophrenia meeting criteria for literal homelessnes
s and 100 such women with no history of homelessness was conducted. Su
bjects were recruited from shelters, clinics, and inpatient psychiatri
c programs in New York City. Clinical interviewers used standardized r
esearch instruments to probe three domains of risk factors: severity o
f mental illness, family background, and prior mental health service u
se. Findings adjusted for ethnicity revealed that homeless women had h
igher rates of a concurrent diagnosis of alcohol abuse, drug abuse, an
d antisocial personality disorder. Homeless women also had less adequa
te family support.