Table 2.
Cumulative incidence rate (per-1000 months) of vertical transmission of HIV among children by 24 months according to selected characteristics
| Characteristics | Total person-months | Number of infected babies | Cumulative incidence rate | 95% CI | |
|---|---|---|---|---|---|
| Age of mother at pregnancy | |||||
| < 20 | 345 | 1 | 2.90 | 0.41 | 20.58 |
| 20–24 | 3328 | 15 | 4.51 | 2.72 | 7.48 |
| 25–29 | 3213 | 14 | 4.36 | 2.58 | 7.36 |
| 30+ | 989 | 8 | 8.09 | 4.05 | 16.18 |
| Education of mother | |||||
| Illiterate | 2650 | 15 | 5.66 | 3.41 | 9.39 |
| Primary school | 1613 | 7 | 4.34 | 2.07 | 9.10 |
| Above primary school | 3612 | 16 | 4.43 | 2.71 | 7.23 |
| Working status of mother | |||||
| Not working | 6722 | 33 | 4.91 | 3.49 | 6.91 |
| Working | 1153 | 5 | 4.33 | 1.80 | 10.41 |
| Know HIV positive status prior to pregnancy | |||||
| No | 6153 | 29 | 4.71 | 3.28 | 6.78 |
| Yes | 1686 | 9 | 5.34 | 2.78 | 10.26 |
| Status of ART initiation by mother | |||||
| Not on ART | 3836 | 18 | 4.69 | 2.96 | 7.45 |
| Started ART more than 90 days prior to delivery | 1890 | 14 | 7.41 | 4.39 | 12.51 |
| Started ART within 90 days prior to delivery | 1362 | 4 | 2.94 | 1.10 | 7.82 |
| Started ART after delivery | 787 | 2 | 2.54 | 0.64 | 10.16 |
| Sex of the child | |||||
| Boy | 4036 | 22 | 5.45 | 3.59 | 8.28 |
| Girl | 3839 | 16 | 4.17 | 2.55 | 6.80 |
| Status of Nevirapine administration | |||||
| Any one given Nevirapine | 978 | 3 | 3.07 | 0.99 | 9.51 |
| Both, mother and baby given Nevirapine | 6573 | 29 | 4.41 | 3.07 | 6.35 |
| None given Nevirapine | 325 | 6 | 18.48 | 8.30 | 41.14 |
| Duration of breastfeeding | |||||
| Not breastfed | 2553 | 4 | 1.57 | 0.59 | 4.18 |
| 1–26 weeks | 3864 | 23 | 5.95 | 3.96 | 8.96 |
| Above 26 weeks | 1438 | 11 | 7.65 | 4.24 | 13.81 |
| Mode of delivery | |||||
| Vaginal | 6946 | 37 | 5.33 | 3.86 | 7.35 |
| Caesarean | 930 | 1 | 1.08 | 0.15 | 7.64 |
| Total | 7875 | 38 | 4.83 | 3.51 | 6.63 |