[Retracted] Clinicopathological Characteristics of Nonfunctional Pancreatic Neuroendocrine Neoplasms and the Effect of Surgical Treatment on the Prognosis of Patients with Liver Metastases: A Study Based on the SEER Database
Table 2
Predictors of survival identified by multivariate Cox regression analysis.
Variable
Hazard ratio
95% CI
value
Age (years)
≤60
1.000
>60
1.997
1.707-2.336
<0.001
Sex
Male
1.000
Female
0.700
0.600-0.817
<0.001
Primary site
Head
1.000
Body
0.545
0.424-0.701
<0.001
Tail
0.634
0.529-0.759
<0.001
Islet
0.792
0.327-1.921
0.606
Others
0.556
0.335-0.922
0.023
Overlapping
1.020
0.769-1.352
0.892
NOS
0.978
0.739-1.293
0.874
Grade
G1
1.000
G2
1.399
1.147-1.707
0.001
G3
6.736
5.542-8.187
<0.001
G4
9.225
6.883-12.365
<0.001
Tumor stage
Localized
1.000
Regional
1.753
1.414-2.173
<0.001
Distant
6.222
5.210-7.431
<0.001
Surgery
Yes
1.000
No
5.853
5.035-6.805
<0.001
Tumor size (mm)
1-20
1.000
21-40
1.761
1.440-2.152
<0.001
≥40
2.573
2.128-3.112
<0.001
Metastasis
Liver metastasis
1.000
No metastasis
0.232
0.200-0.270
<0.001
NOS: not otherwise specified. was considered statistically significant.
