Figure 4From: Malaria chemoprophylaxis recommendations for immigrants to Europe, visiting relatives and friends - a Delphi method studyHomogeneity index in answers proposed by experts to the 16 scenarios. The homogeneity index for categorical variables ranges from 0 (no consensus, i.e equal distribution throughout the three response choices: yes, no, uncertain) to 1 (complete consensus on one choice). For details about the scenarios, see additional file 2.Back to article page