Table 5.

Stratification of women into low, intermediate, and high 10-year risk for subsequent local invasive cancer

Risk category	Description	Prevalence in cohort %†	10-year risk of local cancer % (95 % CI)
Lowest	p16− and detected by mammo	52	6.2 (5.8–6.8)
Low	p16−, detected by palpation, and postmenopausal	10	9.5 (7.9–12)
Intermediate	p16+ and postmenopausal	35	13.4 (12.4–14.5)
High	p16−, detected by palpation, and premenopausal; or p16 + and premenopausal	3	23 (19.3–27.4)

^†Average prevalence estimated among 2500 cohorts of 1490 women with missing measures imputed as described in the statistical section