Table 3

Sensitivity and specificity of tool for high-risk stunting groups in the development (n=839) and validation (n=338) data sets (complete cases), when the tool is applied at 6 months of age

Predicted probability of being stunted at 3 years of ageSensitivity of toolSpecificity of tool% of children who are actually stunted at 3 years of age, of those predicted to be at high risk of stunting
Development data setValidation data setDevelopment data setValidation data setDevelopment data set (n=839)Validation data set (338)
High-risk cut-off set at ≥20%82.0% (114/139)56.4% (31/55)75.7% (530/700)86.2% (244/283)40.144.3
High-risk cut-off set at ≥15%88.5% (123/139)63.6% (35/55)67.3% (471/700)82.0% (232/283)34.940.7
High-risk cut-off set at ≥10%94.2% (131/139)83.6% (46/55)54.9% (384/700)74.2% (210/283)29.338.7