Table 5 Relative survival ratio by age for the 2492 Asian breast cancer patients treated with breast-conserving therapy (1989–2012)
Age group | 5-year cumulative survival rate (%) | 5-year RSR [%(95% CI)] | |
|---|---|---|---|
Observed | Expected | ||
≤ 40 | 94.3 | 99.7 | 94.6 (91.2–96.8) |
41–50 | 96.7 | 99.2 | 97.4 (95.7–98.6) |
51–60 | 96.9 | 98.1 | 98.8 (96.6–100.1) |
> 60 | 92.3 | 93.0 | 99.2 (94.1–102.5) |