Skip to main content

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