Table 5. RMST of CSS for the subgroups of treatments.
| Treatment | Classification | N | RMST, months | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1-year | 3-year | 5-year | |||||||||||
| 95% CI | Difference | P value | 95% CI | Difference | P value | 95% CI | Difference | P value | |||||
| Chemotherapy | Yes | 184 | 10.4 (9.9–10.8) | 1.8 (1.0–2.6) | <0.001 | 19.6 (17.8–21.5) | 3.2 (0.4–6.1) | 0.028 | 23.7 (20.8–26.7) | 2.8 (–1.8–7.5) | 0.237 | ||
| No | 158 | 8.5 (7.8–9.3) | 16.4 (14.2–18.7) | 20.9 (17.2–24.6) | |||||||||
| Radiotherapy | Yes | 117 | 10.7 (10.3–11.1) | 1.9 (1.2–2.6) | <0.001 | 21.0 (18.8–23.1) | 4.3 (1.5–7.1) | <0.001 | 25.1 (21.6–28.6) | 3.9 (–0.7–8.6) | 0.100 | ||
| No | 225 | 8.9 (8.3–9.4) | 16.6 (14.8–18.5) | 21.1 (18.1–24.2) | |||||||||
RMST, restricted mean survival time; CSS, cancer-specific survival; CI, confidence interval.