Transmission rates corresponding to each combination of 3 treatment regimens during pregnancy (AZT, HAART or none), infant adherence or non-adherence to NVP for 6 weeks post-delivery, and adherence or non-adherence to feeding guidelines.

<p>Transmission rates corresponding to each combination of 3 treatment regimens during pregnancy (AZT, HAART or none), infant adherence or non-adherence to NVP for 6 weeks post-delivery, and adherence or non-adherence to feeding guidelines.</p

Scenario probabilities for the percentage of women who are accessing PMTCT at each stage in the model, for ideal, low and status quo scenarios, for women who had AZT or HAART initiated with ANC.

<p>Scenario probabilities for the percentage of women who are accessing PMTCT at each stage in the model, for ideal, low and status quo scenarios, for women who had AZT or HAART initiated with ANC.</p

Co-authorship network according to the income-level of the country of origin (anonymized).

<p>Network composed of 1339 authors (or nodes). Authors from high-income countries are in blue, middle-income countries in green and low-income countries in red. Nodes were resized according to the degree of centrality.</p

Conditional dependency relationships among model variables.

<p>Conditional dependency relationships among model variables.</p

Results from the uncertainty analysis for Option A (red) and Option B+ (blue) scenarios and the idealised (green) scenario.

<p>The box plots show variation in the cohort-median mother-to-child transmission rates over 10,000 simulated cohorts. For each scenario, the box denotes the interquartile range (IQR: 25th to 75th percentiles) and the middle line denotes the median (50th percentile). <b>Whiskers capture values up to twice the width of the IQR, while those exceeding this</b> are shown as outliers (blue scattered tail).</p

WHO 2010 guidelines for South Africa PMTCT.

<p>WHO 2010 guidelines for South Africa PMTCT.</p

International collaboration by economic groups of countries (1996–2012)

<p>International collaborations were considered when the paper involved different countries, 98 in total. The combination of countries according to economic groups considered income extremes. For example, if there was a collaboration involving one high-income country and two middle-income countries, this was classified as a high- and middle-income country collaboration, not as middle and middle.</p

Percentage of HIV-positive women eligible for AZT prophylaxis who are cumulatively lost at each stage of the PMTCT cascade.

<p>Percentage of HIV-positive women eligible for AZT prophylaxis who are cumulatively lost at each stage of the PMTCT cascade.</p

Percentage of HIV-positive women eligible for HAART who are cumulatively lost at each stage of the PMTCT cascade.

<p>Percentage of HIV-positive women eligible for HAART who are cumulatively lost at each stage of the PMTCT cascade.</p

Conceptual diagram.

<p>Conceptual diagram of the model representing relative percentages of infant infections that are attributable to stigma-related and non-stigma-related barriers and to drug ineffectiveness.</p