Fig. 1

Predicted BMI Z-score and MUAC Z-score risk categories as measured by CI staff. The confusion matrix displays the counts in the cells, and color indicates agreement. Negative values on the off diagonals signify disagreement and vary in intensity of blue, whereas positive values on the diagonal represent agreement and vary in intensity of orange. For example, the cell at the intersection of BMI Z-score “Obese” and MUAC-CI Staff “At Risk, Over” is darker blue because there is 50% disagreement (1/2 measurements misclassified at that level). In contrast, BMI Z-score “Normal” and MUAC tape “At Risk, Over” is very light blue because the disagreement at that level is only 1% (4/461 misclassified at that level)