Group | Participants at risk | Person time (years) | Events | Incidence rate per 100 person years (95% confidence Interval) |
---|---|---|---|---|
Injecting cohort | 735 | 7,919 | 405 | 5.1 (4.6, 5.6) |
Seroconversion after release* | 77 | 266 | 12 | 5.5 (3.1, 9.7) |
PCR confirmation after notification | 377 | 1,968 | 130 | 6.6 (5.6, 7.8) |