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Fig. 1 | International Journal of Health Geographics

Fig. 1

From: Capturing the spatial variability of HIV epidemics in South Africa and Tanzania using routine healthcare facility data

Fig. 1

Comparisons between HIV prevalence estimations using population-based HIV prevalence data and clinic-based prevalence data. HIV prevalence estimations from the population-based data and clinic-based data derived from both models, kriging and cokriging, were extracted at each data point (black dots) included for the ACDIS study area and Tanzania. In A Africa Centre Demographic Information System study area using kriging, B Africa Centre Demographic Information System study area using cokriging, C Tanzania using kriging, D Tanzania using cokriging. The line in all figures indicates the fitted line between HIV prevalence estimations using population-based HIV prevalence data and clinic-based prevalence data

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