| Characteristics | Population | Percentage (%) |
| Age at first PCR test | ||
| ・ At 6 weeks | 112 | 52.3 |
| ・ 7 weeks to 6 months | 83 | 38.8 |
| ・ After 6 months | 19 | 8.9 |
| Sex | ||
| ・ Female | 114 | 53.3 |
| Male | 100 | 46.7 |
| Birth weight (grams) | ||
| <2500 | 42 | 19.6 |
| 2500 - 3999 | 165 | 77.1 |
| ≥4000 | 7 | 3.3 |
| Childbirth mode | ||
| ・ Vaginally | 113 | 52.8 |
| ・ Elective caesarean section | 84 | 38.8 |
| ・ Caesarean section in emergency | 17 | 7.9 |
| Antiretroviral (ARV) prophylaxis of children | ||
| ・ Yes | 189 | 88.3 |
| ・ No | 25 | 11.7 |
| Cotrimoxazoleprophylaxis | ||
| ・ Yes | 164 | 76.6 |
| ・ No | 50 | 23.4 |
| Feeding pratice | ||
| Feeding replacement | 111 | 51.9 |
| Exclusive Breastfeeding | 54 | 25.2 |
| Mixed feeding | 49 | 22.9 |