. 2023 Jul 25;71:63–68. doi: 10.1016/j.breast.2023.07.010

Table 3.

Breast cancer mortality. Events after 2 versus 5 years of tamoxifen treatment.

Years after surgery	TAM 2 yrs (n = 2105)	TAM 5 yrs (n = 2019)	HR 5 vs 2 yrs	95% CI	SHR 5 vs 2 yrs	95% CI
Years after surgery	Number of events		HR 5 vs 2 yrs	95% CI	SHR 5 vs 2 yrs	95% CI
≥2	568	515	0.89	0.79–1.00	0.92	0.81–1.03
2–5	133	117	0.91	0.71–1.16	0.91	0.71–1.17
5–15	341	283	0.80	0.68–0.94	0.82	0.70–0.96
15 –	94	115	1.20	0.92–1.58	1.13	0.86–1 .49

CI = confidence interval; HR = hazard ratio; SHR = subhazard ratio; TAM = tamoxifen.