. 2018 Jan 31;169(2):359–369. doi: 10.1007/s10549-018-4693-2

Table 6.

10-year risks of invasive local recurrence after breast-conserving surgery alone by tumor size and DCIS score

10-year risk of invasive local recurrence (%)^a (range^b) by DCIS score group
Tumor size (cm)	Age (year)	Low DCIS score (0–38)	Intermediate DCIS score (39–54)	High DCIS score (55–100)
≤ 1	≥ 50	5.3 (3.6–7.4)	8.5 (7.5–9.8)	12.1 (10.0–20.5)
≤ 1	< 50
1.1–2.5	≥ 50
1.1–2.5	< 50
> 2.5	≥ 50	11.6 (7.7–15.5)	17.1 (15.8–20.3)	26.2 (20.6–40.0)
> 2.5	< 50	11.6 (7.7–15.5)	17.1 (15.8–20.3)	26.2 (20.6–40.0)

^a Average risk for E5194 and Ontario DCIS Cohort patients in DCIS Score groups

^b Risks at boundaries of DCIS Score groups