Table 1

Characteristics of all New South Wales opioid substitution therapy registrants and those with notified HIV infection, 1985–2007

Entire cohortHIV infection
Person-yearsPerson-years
No. (%) of registrantsTotalMedian (IQR)No. (%) of registrantsTotalMedian (IQR)
Total45 412 (100)481 9369.94 (5.61–15.2)426 (100)35117.60 (3.66–12.4)
Sex
 Men30 147 (66.4)310 6329.67 (5.31–14.8)346 (81.2)27967.58 (3.63–11.8)
 Women15 265 (33.6)171 30410.6 (6.30–16.2)80 (18.8)7157.68 (3.72–14.6)
Age at cohort entry (years)
 <2516 266 (35.8)166 5039.48 (5.83–14.0)139 (32.6)11767.38 (3.87–13.0)
 25–3014 680 (32.3)171 07311.3 (6.26–17.4)120 (28.2)10277.96 (3.75–11.7)
 ≥3114 466 (31.9)144 3619.46 (4.86–14.4)167 (39.2)13087.25 (2.83–12.7)
Year of cohort entry
 1985–19898476 (18.7)161 56620.4 (18.7–21.8)75 (17.6)88710.2 (6.02–19.2)
 1990–199511 220 (24.7)152 93814.1 (12.7–15.7)140 (32.9)147912.8 (5.99–14.8)
 1996–200115 302 (33.7)133 2328.84 (7.35–10.4)122 (28.6)9088.00 (6.33–9.65)
 2002–200710 414 (22.9)34 2003.44 (1.88–4.81)89 (20.9)2372.72 (1.22–3.89)