Prognostic importance of lymph node yield after curative resection of gastroenteropancreatic neuroendocrine tumours

Table 2 Univariate analysis of variables for relapse-free survival and overall survival in patients who had curative resection of gastroenteropancreatic neuroendocrine tumours

Variable	LR P value	LR P value OS
Production of gut hormones	0.012	0.75
Production of CgA	0.09	0.81
Production of 5 HIAA	0.83	0.098
Genetic predisposition	0.011	0.71
Multiple NET	0.59	0.25
Other active malignancy	0.27	0.96
Vascular infiltration	0.17	0.97
Perineural infiltration	0.0023	0.016
Tumour necrosis	0.66	0.021
≥ 8 lymph nodes retrieved	0.047	0.94
Any lymph nodes positive	0.033	0.78
Gender	0.58	0.87
Localisation	0.0049	0.44
T stage	0.015	0.22
N stage	0.008	0.58
M stage	0.089	0.17
Grade	0.039	1
Surgical margin	0.32	0.69
ECOG performance status	0.75	< 0.0001
ACE comorbidity score	0.39	0.044
Localisation	0.63	0.61
Involved groups	0.062	0.09
TNM stage	0.019	0.19

NET: Neuroendocrine tumours; ECOG: Eastern Cooperative Oncology Group; ACE: Adult Comorbidity Evaluation; CgA: Chromogranin A.