Table 3.
Univariable analysis of risk factors associated with anti-HCV positivity
| Variables | Unadjusted OR (95% CI) | P value |
|---|---|---|
| Age, years | ||
| ⩽10 | 1·00 | – |
| 11–20 | 1·38 (1·02–2·61) | 0·032 |
| 21–30 | 1·01 (0·62–2·81) | 0·615 |
| 31–40 | 3·23 (1·80–7·01) | <0·001 |
| 41–50 | 8·61 (3·09–18·59) | <0·001 |
| 51–60 | 11·85 (5·21–28·04) | <0·001 |
| 61–70 | 12·19 (6·90–21·13) | <0·001 |
| >70 | 5·21 (1·89–8·09) | <0·001 |
| Sex | ||
| Male | 1·00 | – |
| Female | 3·19 (1·79–7·10) | <0·001 |
| Marital status | ||
| Unmarried | 1·00 | – |
| Married | 4·78 (3·09–7·12) | <0·001 |
| Divorced | 1·65 (1·15–3·75) | <0·001 |
| Education | ||
| Primary school | 1·00 | – |
| Middle school | 0·81 (0·52–1·32) | 0·338 |
| College | 0·41 (0·19–0·65) | <0·001 |
| Occupation | ||
| Agricultural worker | 1·00 | – |
| Worker | 0·81 (0·59–1·37) | 0·418 |
| Student | 0·08 (0·03–0·19) | <0·001 |
| Civil servant | 0·56 (0·16–0·85) | <0·001 |
| Shop assistant | 0·51 (0·34–0·81) | <0·001 |
| Unemployed | 0·30 (0·19–0·59) | <0·001 |
| Others | 0·46 (0·27–0·73) | <0·001 |
| Smoking | ||
| Never | 1·00 | – |
| Current | 0·91 (0·78–1·53) | 0·469 |
| Past | 1·23 (1·05–2·23) | <0·001 |
| Drinking | ||
| Never | 1·00 | – |
| Frequently | 0·71 (0·48–1·04) | 0·078 |
| Every day | 1·31 (1·08–1·92) | <0·001 |
| Body mass index (kg/m2) | ||
| <18·5 | 1·00 | – |
| 18·5–24 | 1·57 (1·12–2·93) | <0·001 |
| 24–28 | 2·35 (1·89–3·77) | <0·001 |
| >28 | 3·09 (1·67–5·19) | <0·001 |
| History of hypertension | ||
| No | 1·00 | – |
| Yes | 1·93 (1·55–2·54) | <0·001 |
| History of diabetes | ||
| No | 1·00 | – |
| Yes | 1·37 (1·15–1·83) | <0·001 |
| Hospitalization | ||
| No | 1·00 | – |
| Yes | 1·39 (1·14–1·69) | 0·001 |
| Surgery | ||
| No | 1·00 | – |
| Yes | 1·48 (1·19–1·85) | <0·001 |
| Blood transfusion | ||
| No | 1·00 | – |
| Yes | 4·05 (2·92–5·63) | <0·001 |
| Blood donation | ||
| No | 1·00 | – |
| Yes | 1·72 (0·51–5·63) | 0·389 |
| Invasive testing | ||
| No | 1·00 | – |
| Yes | 3·13 (2·41–4·23) | <0·001 |
| Haemodialysis | ||
| No | 1·00 | – |
| Yes | 1·01 (0·81–1·27) | 0·753 |
| Acupuncture | ||
| No | 1·00 | – |
| Yes | 1·10 (0·74–1·75) | 0·681 |
| Dental therapy | ||
| No | 1·00 | – |
| Yes | 3·11 (1·76–4·46) | <0·001 |
| Tattoos | ||
| No | 1·00 | – |
| Yes | 1·96 (0·96–4·79) | 0·069 |
| Piercing | ||
| No | 1·00 | – |
| Yes | 0·62 (0·35–1·21) | 0·612 |
| Sharing needles | ||
| No | 1·00 | – |
| Yes | 1·03 (0·71–1·48) | 0·587 |
| Sharing razors | ||
| No | 1·00 | – |
| Yes | 0·67 (0·45–1·09) | 0·128 |
| Sharing tooth brush | ||
| No | 1·00 | – |
| Yes | 0·81 (0·75–1·12) | 0·431 |
OR, Odds ratio; CI, confidence interval.