Research Article
Cluster-Randomized Controlled Study of SMS Text Messages for Prevention of Mother-to-Child Transmission of HIV in Rural Kenya
Table 2
Antiretroviral usage among study participants.
| | | Intervention | Control | Adjusted effect estimates | | Difference [95% CI | Relative risk [95% CI] |
| | Antiretroviral usage outcomes at 34–36 weeks | N = 261 | N = 242 | | | | Mother taking any type of antiretrovirals | 254 (97.3%) | 241 (99.6%) | 0.40% [−1.9, 2.7] | 1.04 [0.91, 1.18] | | Mother on combination antiretroviral therapy | 51 (20.1%) | 51 (21.2%) | −0.10% [−4.9, 4.7] | 1.01 [0.29, 3.45] | | Any missed doses in the past week | 19 (7.5%) | 13 (5.4%) | 0.20% [−1.1, 1.6] | 1.25 [0.43, 3.6] | | Outcomes at delivery, 7 days postpartum | N = 247 | N = 229 | | | | Mother taking any type of antiretrovirals | 234 (94.7%) | 229 (100%) | −0.10% [−2.6, 2.3] | 1.01 [0.88, 1.16] | | Mother on combination antiretroviral therapy | 59 (25.2%) | 50 (21.8%) | 0.70% [−4.3, 5.8] | 1.28 [0.36, 4.62] | | Any maternal missed doses in past week | 18 (7.8%) | 12 (5.3%) | 0.40% [−1.3, 2.1] | 1.56 [0.43, 5.61] | | Infant started taking antiretrovirals | 199 (80.9%) | 209 (90.1%) | −1.20% [−4.8, 2.4] | 0.91 [0.77, 1.14] | Outcomes 6–8 weeks postpartum
| N = 244 | N = 227 | | | | Mother taking any type of antiretrovirals | 178 (73%) | 200 (88.1%) | −2.10% [−7.3, 3.1] | 0.87 [0.61, 1.24] | | Mother on combination antiretroviral therapy | 49 (27.5%) | 52 (26%) | −0.20% [−4.9, 4.6] | 0.92 [0.28, 3.09] | | Any maternal missed doses in the past week | 19 (10.7%) | 7 (3.5%) | 0.80% [−1.1, 2.8] | 2.09 [0.37, 11.77] |
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on cluster residuals.
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