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. 2019 Jul 22;8(11):5128–5136. doi: 10.1002/cam4.2431

Table 1.

Characteristics of GEP‐NENs patients with liver metastases in SEER database (N = 1547)

Characteristics Total Resection Nonresection P value
N = 1547 N = 897 N = 650
Gender       .005
Male 842 461 381  
Female 705 436 269  
Age at diagnosis       .007
<60 767 471 296  
≥60 780 426 354  
Race       .002
White 1231 738 493  
Black 208 112 96  
Other* 108 47 61  
Primary tumor site       <0.001
Stomach 99 19 80  
Small intestine 556 447 79  
Colorectum 391 233 158  
Pancreas 501 168 333  
Primary tumor size       <.001
≤2 cm 278 245 33  
2‐4 cm 428 314 114  
≥4 cm 602 307 295  
Unknown 239 31 208  
LN metastases       <.001
Yes 958 717 241  
No 464 167 297  
Unknown 125 13 112  
Differentiation       <.001
Well differentiated 726 505 221  
Moderately differentiated 310 204 106  
Poorly differentiated 352 122 230  
Undifferentiated 159 66 93  

Other*: American Indian/AK Native, Asian/Pacific Islander, unknown.

Abbreviation: LN: lymph nodes.