Table 3 Multivariable logistic regression analysis of risk factors associated with mother-to-child transmission of HIV at 6 weeks and at 6 months of life
HIV infection at 6 weeks | HIV infection at 6 months | |
|---|---|---|
(1) | (2) | |
Variables | adjusted OR [95% CI] | adjusted OR [95% CI] |
Mother’s age | ||
<=24 | 1.22 [0.41 - 3.64] | 1.43 [0.53 - 3.89] |
>24 | 1 | 1 |
Marital status | ||
not currently married | 1.42 [0.42 - 4.79] | 1.55 [0.49 - 4.90] |
currently married | 1 | 1 |
Education attainment | ||
none/primary | 1.09 [0.29 - 4.08] | 1.09 [0.33 - 3.63] |
secondary/university education | 1 | 1 |
Wealth index | ||
poorest | 2.07 [0.31 - 14.01] | 1.37 [0.27 - 7.01] |
second | 0.77 [0.07 - 8.16] | 0.39 [0.05 - 3.44] |
middle | 0.82 [0.11 - 5.90] | 0.53 [0.09 - 2.94] |
fourth | 1.33 [0.21 - 8.32] | 1.05 [0.23 - 4.91] |
richest | 1 | 1 |
Parity | ||
primiparous | 1.97 [0.65 - 5.94] | 2.33 [0.84 - 6.41] |
multiparous | 1 | 1 |
Disclosed HIV status to partner | ||
No | 4.68** [1.39 - 15.77] | 3.41** [1.09 - 10.65] |
Yes | 1 | 1 |
Place of delivery | ||
home | 2.98 [0.42 - 21.17] | 2.21 [0.33 - 14.88] |
health facility | 1 | 1 |
child’s sex | ||
Male | 1.27 [0.49 - 3.34] | 1.21 [0.49 - 2.98] |
Female | 1 | 1 |
Type of feeding for the child during first 6 months of life | ||
mixed feeding | 5.5 [0.40 - 74.82] | 9.64* [0.96 - 96.62] |
artificial feeding | 2.45 [0.39 - 15.24] | 1.99 [0.36 - 11.10] |
exclusive breastfeeding | 1 | 1 |
Mode of delivery | ||
vaginal/instrument assisted | 0.66 [0.17 - 2.57] | 0.91 [0.24 - 3.40] |
cesarean section | 1 | 1 |
Hemoglobin | ||
<11 g/dl | 2.58* [0.90 - 7.40] | 1.73 [0.65 - 4.62] |
> = 11 g/dl | 1 | 1 |
Type of ARV treatment received | ||
prophylactic | 1.82 [0.38 - 8.73] | 1.79 [0.43 - 7.41] |
curative | 1 | 1 |
duration of ARV prophylaxis/treatment | ||
less than 6 weeks | 2.24 [0.81 - 6.16] | 1.35 [0.51 - 3.57] |
6 weeks or more | 1 | 1 |
CD4 count | ||
<350 cellules/mm3 | 4.83* [0.98 - 23.90] | 3.82* [0.92 - 15.94] |
> = 350 cellules/mm3 | 1 | 1 |
Viral load | ||
> = 1000 copies/ml | 7.30*** [2.65 - 20.08] | 4.60*** [1.84 - 11.49] |
<1000 copies/ml | 1 | 1 |
Observations | 679 | 675 |