Fig. 1

Geographic and demographic description of survey population. a Map of survey household locations, coloured by village in shades of blue, purple, or green if village is in category “outside forest”, “forest fringe”, or “inside forest”, respectively. Background Landsat-8 image courtesy of the U.S. Geological Survey. b Representativeness of age distribution in women and men by overlaying distribution in census (bars) by distribution in survey (points)