Table 2. Epidemiological factors associated with HCV infection among blood donors in Belém, Brazilian Amazon.
| Epidemiological factors | N | Anti-HCV+ n (%) a | OR (CI 95%) | HCV-RNA+ n (%)a | OR (CI 95%) |
|---|---|---|---|---|---|
| Age | |||||
| > 35 years | 151 | 116 (76.8) | 12.3 (7.1 - 21.3) | 86 (57.0) | 8.0 (4.5 - 14.2) |
| ≤ 35 years | 141 | 30 (21.3) | 20 (14.2) | ||
| Use of home-sterilized needles and syringes | |||||
| Yes | 80 | 70 (87.5) | 12.6 (6.1 - 25.7) | 65 (81.3) | 18.1 (9.4 - 33.2) |
| No | 212 | 76 (35.8) | 41 (19.3) | ||
| Invasive dental treatment | |||||
| Yes | 102 | 48 (47.1) | 0.8 (0.5 - 1.4) | 40 (39.2) | 1.2 (0.7 - 2.0) |
| No | 190 | 98 (51.6) | 66 (34.7) | ||
| Shared use of razors at home | |||||
| Yes | 107 | 71 (66.4) | 2.9 (1.8 - 4.8) | 63 (58.9) | 4.7 (2.8 - 7.9) |
| No | 185 | 75 (40.5) | 43 (23.2) | ||
| Shared use of disposable razors in public places | |||||
| Yes | 181 | 112 (61.9) | 3.7 (2.2 - 6.1) | 83 (45.9) | 3.2 (1.9 - 5.6) |
| No | 111 | 34 (30.6) | 23 (20.7) | ||
| Sharing manicure and pedicure material | |||||
| Yes | 153 | 106 (69.3) | 5.6 (3.4 - 9.2) | 87 (56.9) | 8.3 (4.7 - 14.9) |
| No | 139 | 40 (28.8) | 19 (13.7) | ||
a
Percentage of HCV-positive donors within a category in parentheses.