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. Author manuscript; available in PMC: 2009 Apr 1.
Published in final edited form as: AJR Am J Roentgenol. 2009 Apr;192(4):1117–1127. doi: 10.2214/AJR.07.3345

Appendix 2 Table 2.

Comparison of the area under the ROC and PR curves

AROC! APR!!
Radiologists 0.939 ± 0.011 0.396 ± 0.027
Model-1 (demographics + descriptors) 0.927 ± 0.015 0.363 ± 0.030
Model-2 (demographics + descriptors + assessments) 0.963 ± 0.009 0.559 ± 0.026
Model-3 (demographics + assessments) 0.955 ± 0.011 0.487 ± 0.028
!

Az = Area under the receiver operating characteristic curve

!!

APR = Area under the precision-recall curve