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Table 5 Comparison of predictive performance

From: Comparison of predictive models for hepatitis C co-infection among HIV patients in Cambodia

 Logistic regressionCARTSpiegelhalter-Knill-Jones
log-likelihood-201.3-267.8-209.6
Area under ROC curve74.6%73.4%81.9%
Porportion of HCV7.8%28.8%12.1%
co-infections missed   
Sensitivity92.2%71.2%87.9%
Specificity22.1%73.3%50.5%
Positive predictive value4.1%8.7%5.9%
Negative predictive value98.7%98.6%99.2%
Proportion for whom98.2%31.0%30.4%
HCV testing is needed