TABLE 4.

Association between alcohol, impulsivity, and number of needle-shares among sample reporting current IDU

Number of needle-shares	Unadjusted model IRR (95% CI)	Primary adjusted model aIRR (95% CI)
Overall sample, n = 127	n = 127	n = 119
Hazardous drinking	1.55 (1.35–1.79)*	1.39 (1.19–1.61)*
Impulsivity—continuous	1.02 (1.02–1.03)*	1.02 (1.01–1.02)*
Gender, female		0.85 (0.74–0.99)+
Married or partnered, yes		1.03 (0.90–1.18)
CD4 cell count, 0–350		1.27 (1.11–1.46)*
Received money/drugs for sex, past 6 months, yes		1.15 (0.89–1.48)
Used cannabis, past 6 months, yes		0.90 (0.79–1.03)
Used other drugs, past 6 months, yes		0.30 (0.20–0.45)*
Age		0.96 (0.95–0.98)*

These exploratory regression models adjusted for gender, marital status, CD4 count <350, receipt of recent sex trade, cannabis use, and other drug use. A number of needle-sharing episodes were modeled using negative binomial regression. Hazardous drinking refers to hazardous drinking as measured an AUDIT score of 8 or more. Impulsivity was modeled as a continuous variable for these analyses.

aIRR = adjusted incidence rate ratio; CI = confidence interval; IDU = injection drug use; IRR = incidence rate ratio.

⁺P < .05.

^*P < .01.