Fig. 1.

Insecurity and polio vaccination rates in district-level vaccination campaigns. Legend: Bars represent 95% CI. n = 666 total campaigns. Mean vaccination percentage per individual campaign within each insecurity category is shown. Vaccination campaigns were categorized according to exposure to insecurity-associated deaths and injuries per 10,000 people per district in the 12 mo preceding the campaign. Category limits were as follows: secure, 0 (n = 316); low, 0.01–0.756 (n = 117); medium, 0.757–1.744 (n = 117); high, >1.744 (n = 116).