Table 3. Mortality hazard ratios according to number of completed cycles of adjuvant S-1 chemotherapy, multivariate-adjusted.
| Chemotherapy group | No. of patients (%) | Overall survival | ||
|---|---|---|---|---|
| HR | 95% CI | P-value | ||
| 0 cycle | 23 | 1.000 | 0.004 | |
| 1 cycle | 4 (5) | 4.576 | 0.670–31.241 | 0.121 |
| 2 cycles | 10 (12) | 0.560 | 0.120–2.605 | 0.460 |
| 3 cycles | 4 (5) | 0.384 | 0.053–2.799 | 0.345 |
| 4 cycles | 9 (11) | 0.601 | 0.124–3.340 | 0.601 |
| 5 cycles | 5 (6) | 0.153 | 0.013–1.986 | 0.153 |
| 6 cycles | 8 (9) | 0.176 | 0.025–1.233 | 0.080 |
| 7 cycles | 1 (1) | 0.000 | 0.000 | 0.980 |
| 8 cycles (complete) | 44 (51) | 0.107 | 0.023–0.500 | 0.004 |
HR = hazard ratio; CI = confidence interval.