Aims. To establish the extent and nature of linkages between illicit drug a
nd alcohol use and sexual behaviour in women. Participants and Setting. One
hundred women attending either a Genitourinary Medicine Clinic or a Family
Planning Clinic. Design. Respondents were interviewed using a semi-structu
red interview schedule covering the effect of drink/illicit drug use on the
incidence of sex, on condom use, and on specific sexual activities, and de
liberate use of drink/illicit drugs to affect sex. Interviews focused on th
e last three new male partners, from the beginning of the sexual relationsh
ip through its development. Data analysis was primarily qualitative, quanti
tative analysis was conducted where appropriate. Results. There were few ca
ses in which women reported that consumption of drink/illicit drugs caused
them to engage in sexual behaviour which they would not have engaged in if
they had not had drink/drugs. Associations between drink and illicit drugs
and sexual behaviour were, mainly, either because encounters took place in
social situations where drugs or drink were being consumed or because the w
oman used drink or drugs instrumentally to engage in desired behaviours. Th
ere was some evidence to suggest that greater use of drugs and alcohol migh
t be part of a wider pattern of social behaviour including more sexual part
ners. Conclusions. The women's self-reported behaviour suggested that illic
it drug and alcohol use in itself did not usually result in unsafe or undes
ired sexual behaviour.