Table 3.
Odds ratios for serology and NAT test discordance among blood donor population, Georgia, January – December 2020.
| Serology negative/NAT positive n = 60 n (row %) |
Serology and NAT positive n = 427 n (row %) |
Odds Ratio (95% CI) | Adjusted Odds Ratio* (95% CI) | |
|---|---|---|---|---|
| Age Group | ||||
| 18–29 | 9 (13.6) | 57 (86.4) | 1 | 1 |
| 30–39 | 14 (7.0) | 187 (93.0) | 0.47 (0.20, 1.15) | 1.12 (0.40, 3.14) |
| 40–49 | 22 (14.6) | 129 (85.4) | 1.08 (0.47, 2.49) | 2.09 (0.78, 5.64) |
| 50+ | 15 (21.7) | 54 (78.3) | 1.76 (0.71, 4.36) | 3.05 (1.05, 8.88) |
| Sex | ||||
| Female | 20 (20.8) | 76 (79.2) | 2.31 (1.28, 4.17) | 2.06 (1.05, 4.05) |
| Male | 40 (10.2) | 351 (89.8) | 1 | 1 |
| Remuneration Status | ||||
| Paid | 27 (28.4) | 68 (71.6) | 1 | 1 |
| Voluntary | 30 (10.6) | 252 (89.4) | 3.34 (1.86, 5.99) | 2.36 (1.18, 4.73) |
| Replacement | 3 (2.7) | 107 (97.3) | 0.24 (0.07, 0.79) | 0.23 (0.07, 0.79) |
| Donor Status | ||||
| First | 47 (10.0) | 422 (90.0) | 1 | 1 |
| Repeat | 13 (72.2) | 5 (27.8) | 23.35 (7.97, 68.37) | 13.98 (4.06, 48.12) |
Abbreviations: NAT = nucleic acid amplification test; CI = confidence interval.
*
Model includes age, sex, donor type, donor status.