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Baseline characteristics of the study population.
| Characteristics | Male (N = 77) | Female (N = 45) | P value |
|---|---|---|---|
| Age (months) | 68.64 (7.2) | 73.31 (35.8) | 0.86 |
| Weight (kgs) | 18.21 (7.25) | 17.97 (7.3) | 0.48 |
| Mean titres (IU/L) | 134.46 (181) | 111.98 (170.9) | 0.51 |
| Antibody titres | |||
| <10 IU/L | 18 (23.4%) | 20 (44.4%) | p |
| >10 IU/L | 59 (76.6%) | 25 (55.6%) | |
| Immunization schedule | |||
| 4 doses | 74 (96.1%) | 44 (97.8%) | p |
| 3 doses | 3 (3.9%) | 1 (2.2%) | |
