Table 3 Cox proportional-hazards regression analysis
HR (95% CI) | p-value | |
|---|---|---|
Time from definitive therapy to recurrence (≤ 180 days vs. > 180 days) | 1.42 (0.69, 2.92) | 0.348 |
Cancer type (oral vs. non-oral) | 0.46 (0.19, 1.14) | 0.095 |
Alcohol drinking (no vs. yes) | 0.88 (0.38, 2.01) | 0.753 |
Betel nut chewing (no vs. yes) | 1.89 (0.74, 4.85) | 0.186 |
Cigarette smoking (no vs. yes) | 0.44 (0.14, 1.33) | 0.145 |
Cetuximab (experienced vs. naïve) | 2.32 (0.82, 6.54) | 0.111 |
Pembrolizumab dose ( 2 mg/kg vs 200 mg fixed dose) | 1.71 (0.82, 3.60) | 0.154 |