Table 1 Summary of data used for this study
From: Guiding placement of health facilities using multiple malaria criteria and an interactive tool
Variable | Description |
|---|---|
Malaria Prevalence (Dependent variable) | Calculated based on 2010 to 2012 annual household surveys conducted during peak transmission seasons. Prevalence for each cluster (e.g., village) is the proportion of under five children who tested positive for malaria. Geographical coordinates of each village were available |
Location of health facilities | Geographical coordinates of the existing health facilities at the time of the survey were provided by Ghana Health Services |
Travel time to nearest health facility | Calculated using the global travel time surface estimated by Malaria Atlas Project. For each location (pixel), the travel time to each health facility was calculated using the least-cost path method and then the shortest travel time was assigned |
Distance to nearest urban centre | For each location (pixel), the Euclidean distances to Bunkpurugu and Nakpanduri are calculated; the shortest distance is assigned |
Elevation | Extracted from 90Â m resolution digital elevation map from Consortium for Spatial Information |
Normalized Difference Vegetation Index | Extracted from MODIS |
Population density | Extracted from WorldPop |