. Author manuscript; available in PMC: 2009 Oct 15.

Published in final edited form as: Clin Cancer Res. 2008 Oct 15;14(20):6602–6609. doi: 10.1158/1078-0432.CCR-08-0647

Table 7.

Kaplan-Meier estimates of the event-free rates after 10 years in individual risk strata comparing those treated with tamoxifen-only to those treated with tamoxifen plus chemotherapy

RFI: K-M estimates of proportion of recurrence-free after 10 y
Strata	Treatment	K-M estimate (95% CI)	P
All patients	Tam	0.83 (0.77-0.89)	0.014
All patients	Tam + Chemo	0.88 (0.84-0.92)
Low risk	Tam	0.86 (0.79-0.93)	0.01
Low risk	Tam + Chemo	0.91 (0.87-0.96)
Moderate risk	Tam	0.87 (0.73-1)	0.62
Moderate risk	Tam + Chemo	0.82 (0.71-0.93)
High risk	Tam	0.64 (0.45-0.83)	0.017
High risk	Tam + Chemo	0.85 (0.77-0.93)