Fig. 3

Maps were created using ArcGIS® software by Esri version 10.3 [22] (http://www.esri.com/)
Continuous surface maps of A the estimated HIV prevalence using the Tanzania Demographic and Health Survey data, B kriging model for the estimated HIV prevalence using clinic-based data, C residuals from the kriging model, D LISA analysis of the kriging model, E cokriging model for the estimated HIV prevalence using clinic-based data, F residuals from the cokriging model, G LISA analysis of the cokriging model.