Fig. 3From: Parental concerns and uptake of childhood vaccines in rural Tanzania – a mixed methods studyDistribution of vaccine hesitancy in rural vs. urban areas (N = 134). Notes: Vaccine hesitancy index defined using mothers’ responses to 15 questions assessing maternal knowledge, attitudes, and concerns about childhood vaccines; each question is scored on a scale of 0–2; see Fig. 2. A higher index indicates greater vaccine hesitancyBack to article page