Table 5.
Univariable and multivariable Cox proportional hazards regression analysis for PFS.
| Variables | Univariable | Multivariable | ||||
|---|---|---|---|---|---|---|
| HR | 95% CI | P-value | HR | 95% CI | P-value | |
| Morphology (ulcerative vs protruding) |
2.121 | 1.325-3.393 | 0.002 | 1.760 | 1.024-3.026 | 0.04 |
| Size (>2 cm vs ≤ 2cm) | 2.027 | 1.120-3.667 | 0.02 | .880 | 0.385-2.012 | 0.76 |
| Differentiation (NEC vs NET) | 2.308 | 1.409-3.780 | 0.001 | 1.724 | 0.957-3.105 | 0.07 |
| T stage (T3 T4 vs T1, T2) | 2.599 | 1.422-4.749 | 0.002 | 1.421 | 0.577-3.498 | 0.45 |
| M stage (M1 vs M0) | 2.632 | 1.639-4.225 | <0.001 | 2.006 | 1.067-3.774 | 0.03 |
| Surgery (yes vs no) | 0.398 | 0.233-0.680 | 0.001 | 0.693 | 0.348-1.381 | 0.30 |
PFS, progression free survival; NET, neuroendocrine tumor; NEC, neuroendocrine carcinoma; HR, hazards ratio; CI, confidence interval.