Table 1.
Risk factors for bloodborne Infections
| Variables | HIV-1/2+ | HIV-1/2− | OR | P | HBV+ | HBV− | OR | P | HCV+ | HCV− | OR | P | TC+ | TC− | OR | P | TP+ | TP− | OR | P | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| n | % | n | % | n | % | n | % | n | % | n | % | n | % | n | % | n | % | n | % | |||||||||||
| Steady sexual partner | ||||||||||||||||||||||||||||||
| Yes | 5 | 1·0 | 491 | 99·0 | 1·53 | 1·00 | 4 | 0·8 | 473 | 99·2 | 0·24 | 0·04 | 6 | 1·2 | 476 | 98·8 | 0·6 | 0·44 | 11 | 2·4 | 455 | 97·6 | 0·48 | 0·16 | 54 | 11·5 | 416 | 88·5 | 0·92 | 0·77 |
| No | 1 | 0·7 | 150 | 99·3 | 5 | 3·4 | 141 | 96·6 | 3 | 2·0 | 144 | 98·0 | 7 | 4·8 | 139 | 95·2 | 18 | 12·4 | 127 | 87·6 | ||||||||||
| Own manicure kit | ||||||||||||||||||||||||||||||
| Yes | 2 | 0·5 | 367 | 99·5 | 0·49 | 0·66 | 6 | 1·7 | 355 | 98·3 | 1·42 | 0·74 | 8 | 2·2 | 354 | 97·8 | 2·93 | 0·21 | 15 | 4·3 | 337 | 95·7 | 2·22 | 0·17 | 39 | 11·0 | 313 | 89·0 | 0·91 | 0·70 |
| No | 3 | 1·1 | 269 | 98·9 | 3 | 1·2 | 253 | 98·8 | 2 | 0·8 | 259 | 99·2 | 5 | 2·0 | 249 | 98·0 | 31 | 12·0 | 226 | 88·0 | ||||||||||
| Prior haemodialysis | ||||||||||||||||||||||||||||||
| Yes | 0 | 0·0 | 3 | 100·0 | 14·6 | 1·00 | 0 | 0·0 | 3 | 100·0 | 9·62 | 1·00 | 0 | 0·0 | 3 | 100·0 | 8·76 | 1·00 | 0 | 0·0 | 3 | 100·0 | 3·73 | 1·00 | 0 | 0·0 | 3 | 100·0 | 1·06 | 1·00 |
| No | 6 | 0·9 | 664 | 99·1 | 9 | 1·4 | 639 | 98·6 | 10 | 1·5 | 643 | 98·5 | 23 | 3·6 | 613 | 96·3 | 75 | 11·8 | 563 | 88·2 | ||||||||||
| Tattoos | ||||||||||||||||||||||||||||||
| Yes | 2 | 4·9 | 39 | 95·1 | 8·3 | 0·04 | 3 | 7·5 | 37 | 92·5 | 8·41 | 0·01 | 1 | 2·5 | 39 | 97·5 | 1·78 | 0·46 | 0 | 0·0 | 39 | 100·0 | 0·32 | 0·39 | 5 | 12·8 | 34 | 87·2 | 1·12 | 0·80 |
| No | 4 | 0·6 | 647 | 99·4 | 6 | 1·0 | 623 | 99·0 | 9 | 1·4 | 625 | 98·6 | 23 | 3·7 | 594 | 96·3 | 72 | 11·6 | 547 | 88·4 | ||||||||||
| Piercing | ||||||||||||||||||||||||||||||
| Yes | 0 | 0·0 | 19 | 100·0 | 2·53 | 1·00 | 0 | 0·0 | 19 | 100·0 | 1·67 | 1·00 | 0 | 0·0 | 19 | 100·0 | 1·52 | 1·00 | 0 | 0·0 | 18 | 100·0 | 0·71 | 1·00 | 1 | 5·6 | 17 | 94·4 | 0·44 | 0·71 |
| No | 6 | 0·9 | 643 | 99·1 | 9 | 1·4 | 617 | 98·6 | 10 | 1·6 | 622 | 98·4 | 22 | 3·6 | 592 | 96·4 | 73 | 11·8 | 544 | 88·2 | ||||||||||
| Prior blood transfusion | ||||||||||||||||||||||||||||||
| Yes | 0 | 0·0 | 6 | 100·0 | 7·99 | 1·00 | 0 | 0·0 | 5 | 100·0 | 6·96 | 1·00 | 0 | 0·0 | 5 | 100·0 | 5·67 | 1·00 | 0 | 0·0 | 4 | 100·0 | 2·95 | 1·00 | 0 | 0·0 | 4 | 100·0 | 0·87 | 1·00 |
| No | 6 | 0·9 | 675 | 99·1 | 8 | 1·2 | 650 | 98·8 | 10 | 1·5 | 654 | 98·5 | 23 | 3·6 | 623 | 96·4 | 73 | 11·2 | 576 | 88·8 | ||||||||||
| Condom use | ||||||||||||||||||||||||||||||
| Yes | 5 | 2·3 | 212 | 97·7 | 10·3 | 0·02 | 3 | 1·4 | 207 | 98·6 | 1·00 | 1·00 | 4 | 1·9 | 210 | 98·1 | 1·59 | 0·49 | 3 | 1·4 | 204 | 98·6 | 0·34 | 0·09 | 26 | 12·4 | 184 | 87·6 | 1·08 | 0·79 |
| No | 1 | 0·2 | 437 | 99·8 | 6 | 1·4 | 415 | 98·6 | 5 | 1·2 | 418 | 98·8 | 17 | 4·1 | 396 | 95·9 | 48 | 11·6 | 365 | 88·4 | ||||||||||
HBV, Hepatitis B virus; HCV, hepatitis c virus; TC, Treponema cruzi; TP, Treponema pallidum; OR, odds ratio.
Data collected in the questionnaire about previous hospitalization, use of daily medications and having lived in other cities in Bahia state were deleted from the table.
When one value is zero, to make calculations possible, 0·5 was added to each value.