No reinfection (n = 296) | Reinfection (n = 43) | p value | Reinfection rates (RR) | ||
---|---|---|---|---|---|
RR/100 PY | CI 95% | ||||
n (%) | n (%) | ||||
Gender | n = 296 | n = 43 | |||
Men | 228 (77.0) | 31 (72.1) | 0.45 | 8.7 | 6.2–12.1 |
Women | 68 (23.0) | 12 (27.9) | 11.5 | 6.8–19.6 | |
Age | n = 296 | n = 43 | |||
Mean (SD) | 46.2 (10.8) | 38.7 (9.8) | < 0.0001 | ||
Median (range) | 48.7 (21–68) | 36.0 (23–64) | |||
Age interval | n = 296 | n = 43 | |||
< 35 | 54 (18.2) | 16 (37.2) | < 0.01 | 20.6 | 13.3–31.9 |
> 35 | 242 (81.8) | 27 (62.8) | 7.0 | 4.9–10.1 | |
Country of birth | n = 292 | n = 41 | |||
Sweden | 249 (85.3) | 36 (87.8) | 0.81 | 9.1 | 6.7–12.4 |
Outside of Sweden | 43 (14.7) | 5 (12.2) | 8.4 | 3.6–19.5 | |
Living situation | n = 249 | n = 35 | |||
House/apartment | 155 (52.4) | 13 (37.1) | < 0.01 | 4.8 | 2.9–8.2 |
Support housing | 51 (17.2) | 7 (20.0) | 1.0 | 9.2 | 4.5–18.6 |
Treatment home | 17 (5.7) | 3 (8.6) | 0.72 | 11.6 | 4.0–33.5 |
Prison | 1 (0.3) | 3 (8.6) | < 0.01 | 65.8 | 33.5–127.1 |
Homeless | 25 (8.4) | 9 (25.7) | < 0.05 | 25.5 | 14.6–44.9 |
Predominantly drug injected | n = 295 | n = 43 | |||
Stimulants/CS | 173 (58.6) | 22 (51.1) | 0.41 | 7.6 | 5.1–11.3 |
Opioids/OP | 109 (36.9) | 18 (41.9) | 0.61 | 11.5 | 7.4–17.7 |
Mixed CS/OP | 12 (4.1) | 3 (7.0) | 0.42 | 19.8 | 7.2–54.7 |
Other | 1 (0.3) | – | – | – | |
Duration of IDU | n = 289 | n = 43 | |||
Mean (SD) | 23.8 (13.1) | 14.4 (10.1) | < 0.0001 | ||
Median (range) | 23.4 (1–52) | 13.0 (1–44) | |||
Duration of IDU (interval) | n = 289 | n = 43 | |||
0–5 | 22 (7.6) | 8 (18.6) | < 0.05 | 20.7 | 11.2–38.4 |
5+ | 267 (92.4) | 35 (81.4) | 8.4 | 6.1–11.6 | |
OAT | n = 296 | n = 43 | |||
Yes | 93 (31.4) | 13 (30.2) | 1.0 | 9.3 | 5.6–15.7 |
No | 203 (68.6) | 30 (69.8) | 9.3 | 6.6–13.1 | |
HIV | n = 296 | n = 43 | |||
Positive | 17 (5.7) | 2 (4.7) | 1.0 | 9.0 | 2.4–33.7 |
Negative | 279 (94.3) | 41 (95.3) | 9.3 | 7.0–12.5 |