Fig. 3: The SAA in Malawi.
From: Extreme geographic misalignment of healthcare resources and HIV treatment deserts in Malawi
a, Map of the SAA index for a catchment size based on walking for a maximum of 1 h. The map shows values of the SAA index categorized into quantiles. b, Map of the SAA index for a catchment size based on using a combination of motorized transportation, bicycling and walking, and a maximum one-way travel time of 1 h. The map shows values of the SAA index categorized into quantiles. c, The Lorenz curves are shown for the six catchment sizes explored in the spatial sensitivity analysis; the diagonal line represents the line of equity in access to ART. Curves are shown for a maximum one-way travel time of 1 h (red), 2 h (green) and 3 h (blue) and mode of transportation: walking only (solid line) or using a combination of motorized transportation, bicycling and walking (dashed line). d, The Moran scatterplot shows the association between the value of the SAA index and its neighboring (spatially lagged) value. Results are for a catchment size based on using a combination of motorized transportation, bicycling and walking, and a maximum travel time of 1 h. The value of the Global Moran Index is 0.79; this indicates a very high degree of geographic clustering of communities with similar values of the SAA index.
