Table 3.
Univariate and multivariate logistic analysis to determine predictors for risk of non sero-protection n (%)
| Variable | Non-seroprotection rate | Crude odds ratio (95%CI) | AOR (95%CI) |
| Age in years | |||
| < 5 | 152 (13.6) | ® | ® |
| 5 to < 10 | 256 (34.7) | 3.4 (2.7-4.2)b | 3.3 (2.5-4.2)b |
| 10 to < 15 | 606 (59.1) | 9.1 (7.4-11.3)b | 9.1 (7.3-11.2)b |
| ≥ 15 | 571 (69.5) | 14.5 (11.5-18.1)b | 14.2 (11.3-17.9)b |
| Gender | |||
| Boys | 681 (39.2) | ® | ® |
| Girls | 854 (46.2) | 1.3 (1.2-1.5)b | 1.1 (1.0-1.4)b |
Variables entered in model: Age group, gender, socio-economic levels and history of rheumatic fever, diabetes mellitus, surgical operation, regular medical injection, blood transfusion, hospital admission, open abscess.
b
P < 0.01. AOR: Adjusted odds ratio;
®
: Reference group.