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Table 4 The sensitivity, specificity and positive predictive power of the additive model at Kakamega

From: Development and validation of climate and ecosystem-based early malaria epidemic prediction models in East Africa

U-shaped ecosystem model performance, Kakamega
Event Epidemic positive Epidemic negative Total
Model Positive True positive (TP) False positive (FP)  
4 0 4
Model negative False negative (FN) True negative (TN)  
0 118 118
Total 4   122
Sensitivity TP/(TP + FN)   1
Specificity TN/(TN + FP)   1
Positive predictive power TP/(TP + FP)   1