Table 3 Factors associated with HCV seroconversion among PWID in Hai Phong.
Number of participants in each category | Bivariate model Crude OR (95%CI) | P value | ||
|---|---|---|---|---|
No seroconversion n = 74 | Seroconversion n = 18 | |||
Sex* (female vs male/transgender) | 7(9.5%) | 3(16.7%) | 1.9(0.3–9.6) | 0.40 |
Age* | ||||
<32 years vs > =40 | 23(31.1%) | 6(33.3%) | 1.0(0.2–3.7) | 0.89 |
[32;40] vs > =40 | 21(28.4%) | 4(22.2%) | 0.7(0.1–3.1) | |
Having a low school grade (<grade 9)§ | 39(52.7%) | 10(55.6%) | 1.1(0.4–3.2) | 0.83 |
Being in couple/married§ | 31(41.9%) | 6(33.3%) | 0.7(0.2–2.0) | 0.51 |
Having a medical insurance* | 12(16.2%) | 4(22.2%) | 1.5(0.3–5.9) | 0.73 |
Younger injector (duration of injection ≤2 years)§ | 23(31.1%) | 8(44.4%) | 1.8 (0.6–5.1) | 0.29 |
Inject > = 60 per month§ | 23(31.1%) | 13(72.2%) | 5.9(1.8–18.1) | 0.003 |
Use of methamphetamine§ | 47(63.5%) | 8(44.4%) | 0.5(0.2–1.3) | 0.14 |
Use of non-injectable drugs other than methamphetamine* | 23(31.1%) | 2(11.1%) | 0.3(0.0–1.3) | 0.14 |
Injection with syringes already used by someone else* | 1(1.4%) | 1(5.6%) | 4.2(0.0–341.5) | 0.35 |
Having shared syringe already used by the participant* | 12(16.2%) | 2(11.1%) | 0.6(0.1–3.4) | 0.73 |
Having sexual intercourse§ | 53(71.6%) | 12(66.7%) | 0.8(0.3–2.4) | 0.68 |
Sexual activity with the primary partner vs no sexual activity§ | 49(66.2%) | 10(55.6%) | 0.6(0.2–1.8) | 0.40 |
Having a primary sexual partner who previously injected drugs* | 3(4.1%) | 2(13.3%) | 3.5(0.3–34.0) | 0.20 |
Sexual intercourse with sex workers* | 6(8.1%) | 3(16.7%) | 2.2(0.3–12.0) | 0.37 |
Sex work of the participant (male or female)* | 10(13.5%) | 2(11.1%) | 0.8(0.1–4.3) | 1.00 |
Have been arrested at least once during the at-risk period* | 3(4.1%) | 3(16.7%) | 4.6(0.6–38.0) | 0.09 |
Being in methadone treatment during all the at-risk period* | 3(4.1%) | 2(11.1%) | 2.9(0.2–27.7) | 0.25 |
