| Variables | Participants | ||
| PCV7 Group | Hib Group | Total | |
| 1. Number of children enrolled | 1643 | 1638 | 3281 |
| 2. Number of children with Nasopharyngeal sample collected at Day 0 | 1643 | 1638 | 3281 |
| 3. Number of children with Nasopharyngeal sample collected at Day 60 | 1535 | 1518 | 3053 |
| 4. Number of children with Nasopharyngeal sample collected at Day 180 | 1475 | 1475 | 2950 |
| 5. Gender, male (%) | 820 (49.9%) | 850 (51.8%) | 1670 (50.9%) |
| 6. Age, mean ± SD (years) | 3.2 ± 0.8 | 3.0 ± 0.8 | 3.1 ± 0.8 |
| 7. Height, mean ± SD (cm) | 98.8 ± 8.0 | 98.6 ± 8.1 | 98.7± 8.0 |
| 8. Weight, mean ± SD (kg) | 16.2 ± 3.2 | 16.2 ± 3.2 | 16.2 ± 3.2 |