Table 2.
Univariate and multivariate Cox regression for PFS in the population of analysis.
| Univariate Cox regression | Multivariate Cox regression | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| n (events) | HR | 95%CI | p-value | n (events) | HR | 95%CI | p-value | ||
| Gender | Male | 34 (30) | 1 | 0.9242 | |||||
| Female | 6 (6) | 1.04 | 0.43-2.54 | ||||||
| Age at treatment initiation | Continuous | 40 (36) | 1.02 | 1.00-1.05 | 0.103 | ||||
| <70 | 22 (20) | 1 | 0.1274 | 22 (20) | 1 | 0.6909 | |||
| ≥70 | 18 (16) | 1.69 | 0.87-3.31 | 18 (16) | 1.16 | 0.55-2.46 | |||
| ECOG PS | 0 | 21 (19) | 1 | 0.142 | 21 (19) | 1 | 0.1001 | ||
| 1 | 19 (17) | 1.64 | 0.85-3.17 | 19 (17) | 1.86 | 0.89-3.91 | |||
| Initial Diagnosis | |||||||||
| Primary tumor | Stomach | 27 (26) | 1 | 0.8953 | |||||
| GEJ/lower esophagus | 13 (10) | 0.95 | 0.46-1.98 | ||||||
| Histology | Well | 10 (8) | 1 | 0.2965 | |||||
| Moderately/undifferentiated | 25 (25) | 1.54 | 0.69-3.44 | ||||||
| Metastasis location | |||||||||
| Peritoneum | No | 31 (28) | 1 | 0.2394 | |||||
| Yes | 9 (8) | 1.61 | 0.73-3.57 | ||||||
| Lymph nodes | No | 17 (16) | 1 | 0.8914 | |||||
| Yes | 23 (20) | 0.96 | 0.49-1.85 | ||||||
| Lung | No | 32 (29) | 1 | 0.4712 | |||||
| Yes | 8 (7) | 0.73 | 0.31-1.71 | ||||||
| Liver | No | 13 (11) | 1 | 0.2355 | |||||
| Yes | 27 (25) | 1.55 | 0.75-3.18 | ||||||
| Taxanes | No | 19 (18) | 1 | 0.0418 | 19 (18) | 1 | 0.033 | ||
| Yes | 21 (18) | 0.49 | 0.25-0.98 | 21 (18) | 0.44 | 0.21-0.94 | |||
Population of analysis: patients with ECOG PS 0 - 1 and synchronous metastasis. CI, Confidence Interval; HR, Hazard Ratio; PS, Performance Status.
Bold text: significant p-value.