History of risk behaviors | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) |
---|---|---|---|---|
People on OAT (n = 621) | ||||
Drug use, ever | 100 | 9 | 12 | 100 |
Injecting drug use, ever | 65 | 90 | 46 | 95 |
Shared injection equipment, ever | 45 | 95 | 56 | 93 |
HCV screening, ever | 45 | 68 | 15 | 90 |
People with a history of OAT (n = 241) | ||||
Drug use, ever | 94 | 29 | 9 | 98 |
Injecting drug use, ever | 39 | 93 | 29 | 95 |
Shared injection equipment, ever | 25 | 97 | 36 | 95 |
HCV screening, ever | 25 | 63 | 5 | 92 |
People with no history of OAT (n = 949) | ||||
Drug use, ever | 87 | 42 | 6 | 99 |
Injecting drug use, ever | 39 | 96 | 29 | 98 |
Shared injection equipment, ever | 17 | 98 | 29 | 97 |
HCV screening, ever | 47 | 72 | 7 | 97 |