Highly active anti-retroviral therapy in the prevention of mother-to-child transmission of HIV in rural Zimbabwe during the socio-economic crisis
Bibliographic record
Abstract
The purpose of this study is to evaluate the effectiveness of highly active antiretroviral therapy (HAART) in preventing mother-to-child transmission (PMTCT) of HIV in breastfeeding women in rural Zimbabwe. During a severe socio-economic crisis in 2005-2007, 82 eligible HIV-positive pregnant women between 14-36 weeks gestation were initiated on HAART with AZT/3TC/nelfinavir combination therapy at a rural hospital and continued through to six months post-partum. In addition, mothers also received intrapartum single-dose nevirapine (sdNVP). Infants received sdNVP/AZT in the first 72 hours and were assessed for HIV infection at six weeks of age. Results were compared to historical controls of HIV-positive pregnant women who received sdNVP only at the same center. Of the 67 infants with available data on HIV status at six weeks postpartum, three (4.4%) were HIV positive by HIV RNA assay in the HAART + sdNVP group compared to 49/297 (16.5%) in the sdNVP group (p = 0.01). HAART given to HIV-infected mothers in pregnancy and during breastfeeding along with intrapartum sdNVP resulted in a lower postnatal HIV transmission at six weeks postpartum compared to sdNVP treatment. Our HAART regimen demonstrates that PMTCT of HIV can be effective even during times of socioeconomic crisis in resource-poor rural settings.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".