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Table 3 Model performance, by age group

From: Mammographic density adds accuracy to both the Tyrer-Cuzick and Gail breast cancer risk models in a prospective UK screening cohort

   Calibration: O/E (95 % CI) Discrimination: AUC (95 % CI)
Age group, yr Cases/total (%) Tyrer-Cuzick Gail Tyrer-Cuzick Gail
47–49 170/13,662 (1.2 %) 51 % (16–85 %) 43 % (−4–88 %) 0.57 (0.52–0.61) 0.54 (0.50–0.59)
50–54 125/10,677 (1.2 %) 52 % (14–89 %) 44 % (−8–93 %) 0.55 (0.49–0.60) 0.54 (0.49–0.59)
55–59 42/4312 (1.0 %) 70 % (−2–138 %) 33 % (−75–135 %) 0.58 (0.49–0.67) 0.53 (0.45–0.62)
60–64 147/8244 (1.8 %) 79 % (42–114 %) 17 % (−33–64 %) 0.62 (0.58–0.66) 0.52 (0.48–0.57)
65–69 173/10,926 (1.6 %) 44 % (10–76 %) 17 % (−29–60 %) 0.54 (0.50–0.59) 0.51 (0.46–0.55)
70–73 40/2807 (1.4 %) 122 % (54–188 %) 99 % (19–172 %) 0.64 (0.55–0.73) 0.58 (0.48–0.68)
  1. O/E observed to expected odds ratio, CI confidence interval, AUC area under the receiver operating characteristic curve