Table 2.
Potential factors for seronegativity of mumps antibody with corresponding crude and adjusted odds ratios (ORs).
| Factors | n | Seronegativity (%, 95% CI) | Univariate Analysis | Multivariate Analysis | ||
|---|---|---|---|---|---|---|
| Crude OR (95%CI) | p Value | Adjusted OR * (95% CI) | p Value | |||
| Sex | 0.128 | |||||
| Male | 1364 | 19.1 (17.0–21.2) | 1.2 (0.96–1.4) | 1.4 (1.0–1.8) | 0.026 | |
| Female | 1298 | 16.8 (14.8–18.9) | Reference | Reference | ||
| Age (years) | <0.0001 | |||||
| 0–18 months | 339 | 88.2 (84.3–91.4) | 165.0 (86.5–315.0) | 165.6 (86.7–316.4) | <0.0001 | |
| 19–36 months | 209 | 6.2 (3.4–10.4) | 1.5 (0.7–3.2) | 1.4 (0.7–3.2) | 0.366 | |
| 4–9 | 402 | 0.7 (0.2–2.2) | 0.2 (0.0–0.6) | 0.2 (0.0–0.6) | 0.005 | |
| 10–12 | 378 | 9.3 (6.5–12.4) | 2.3 (1.2–4.3) | 2.2 (1.1–4.2) | 0.021 | |
| 13–16 | 306 | 7.5 (4.8–11.1) | 1.8 (0.9–3.6) | 1.8 (0.9–3.6) | 0.107 | |
| 17–19 | 184 | 16.3 (11.3–22.5) | 4.3 (2.2–8.5) | 4.2 (2.1–8.3) | <0.0001 | |
| 20–29 | 206 | 15.0 (10.5–20.7) | 3.9 (2.0–7.7) | 3.8 (1.9–7.5) | <0.0001 | |
| 30–39 | 183 | 9.3 (5.5–14.5) | 2.3 (1.1–4.8) | 2.2 (1.0–4.7) | 0.037 | |
| 40–49 | 155 | 9.0 (5.0–14.7) | 2.2 (1.0–4.8) | 2.3 (1.0–5.0) | 0.038 | |
| ≥50 | 300 | 4.3 (2.3–7.3) | Reference | Reference | ||
| Household registration | 0.016 | |||||
| Local | 1449 | 19.6 (17.6–21.7) | 1.3 (1.0–1.6) | 1.1 (0.8–1.5) | 0.435 | |
| Migrant | 1213 | 16.0 (14.0–18.2) | Reference | Reference | ||
| Number of vaccinations | <0.0001 | |||||
| 0 dose | 1180 | 32.0 (29.4–34.8) | 7.0 (4.3–11.5) | 139.8 (38.3–510.9) | <0.0001 | |
| 1 dose | 274 | 8.8 (5.7–12.8) | 1.4 (0.8–2.7) | 3.9 (1.7–9.0) | 0.001 | |
| 2 doses | 921 | 6.3 (4.8–8.1) | 1.0 (0.6–1.7) | 1.7 (0.9–3.0) | 0.102 | |
| 3 doses | 287 | 6.3 (3.8–9.7) | Reference | Reference | ||
* Adjusted for age and gender.