[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 1
Clinicopathological characteristics and univariate analysis of patients with NF-pNENs registered in the SEER database (2000-2017).
Characteristics
Number of patients () (%)
Survival rate (%)
value
3 years
5 years
Age (years)
<0.001
≤60
1421 (63.7)
86.9
81.4
>60
1523 (36.3)
74.6
67.2
Sex
<0.001
Male
1626 (55.2)
77.6
70.7
Female
1318 (44.8)
84.2
78.3
Race
0.052
White
2324 (78.9)
79.7
73.2
Black
328 (11.1)
81.2
77.1
Others
292 (9.9)
85.7
78.2
Primary site
<0.001
Head
863 (29.3)
75.0
69.3
Body
454 (15.4)
85.9
80.2
Tail
1116 (37.9)
84.0
78.1
Islet
17 (0.6)
85.2
80.6
Others
92 (3.1)
82.8
74.4
Overlapping
192 (6.5)
75.3
65.2
NOS
210 (7.1)
Grade
<0.001
G1
2104 (71.5)
86.4
80.5
G2
570 (19.4)
81.4
72.9
G3
200 (6.8)
34.1
28.2
G4
70 (2.4)
24.2
20.8
Tumor stage
<0.001
Localized
1572 (53.4)
91.1
86.3
Regional
730 (24.8)
83.7
77.8
Distant
642 (21.8)
51.4
40.9
Surgery
<0.001
Yes
2297 (78.0)
73.7
34.7
No
647 (22.0)
73.9
32.1
Tumor size (mm)
<0.001
1-20
1136 (38.6)
88.0
83.9
21-40
930 (31.6)
80.7
72.1
≥40
878 (29.8)
70.7
63.9
Metastasis
<0.001
Liver metastasis
529 (18.0)
52.3
41.1
No metastasis
2415 (82.0)
86.8
81.5
NOS: not otherwise specified. Univariate analysis was calculated by the Kaplan-Meier method with the log-rank test; was considered statistically significant.
