A sample of 301 regular amphetamine users were interviewed regarding i
njecting and sexual risk-taking behaviours. Two-thirds of subjects wer
e injecting the drug, with males being 1.8 times more likely to do so.
Nearly half (41%) of injectors had shared injecting equipment in the
preceding month. Females were twice as likely as males to report recen
t needle sharing. Having a regular sexual partner who injects amphetam
ines, using benzodiazepines and experiencing higher levels of psychopa
thology were independently associated with needle sharing. The number
of sexual partners in the preceding six months was independently assoc
iated with having had paid sex in that period, and higher levels of po
lydrug use.