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. 2019 Mar 18;179(5):1–11. doi: 10.1001/jamainternmed.2018.8372

Table 1. Performance Measures and Definitions.

Performance Measure Definition
Recall rate Percentage of screening examinations with a positive end-of-day assessment
Cancer detection rate No. of true-positive screens per 1000 screens
Interval cancer rate No. of screening examinations with a negative final assessment and cancer diagnosed within the follow-up period per 1000 screens
Cancer rate No. of screens with cancer within the follow-up period per 1000 screens
Biopsy recommendation rate No. of screening examinations with a positive final assessment per 1000 screens
False-positive biopsy recommendation rate No. of screening examinations with a false-positive final assessment per 1000 screens
Positive predictive value of biopsy recommendation (PPV2) Percentage of category 4 and 5 assessments with a tissue diagnosis of cancer within the follow-up period
Short-interval follow-up rate Percentage of screens with a final category 3 assessment
Sensitivity Percentage of true-positive results among those with cancer within the follow-up period
Specificity Percentage of true-negative results among those without cancer within the follow-up period