C-reactive protein may be a prognostic factor for the whole gastroenteropancreatic neuroendocrine tumor group

Table 6 Relative increase in risk of death in unit changes of determined variables

	Significance level (P)	Relative increase in risk of death according to unit change (fold)	95%CI
			Lower limit	Upper limit
Age (yr)	0.041	1.04	1.007	1.066
Gender (M/F)	0.015	2.0	1.028	3.976
Tumor diameter (cm)	0.02	1.09	1.014	1.169
Tumor grade (Ki-67) (3/1-2)	< 0.001	3.6	1.873	7.206
Tumor grade (mitosis) (3/1-2)	0.006	3.0	2.823	13.362
Determined tumor grade (3/1-2)	< 0.001	3.6	1.873	7.206
Tumor stage (3-4/1-2)	< 0.001	12.7	3.869	41.708
CRP level (mg/L )	0.005	1.01	1.022	1.253
Liver metastasis (P/A)	< 0.001	6.1	2.823	13.362

F: Female; M: Male; CRP: C-reactive protein; ESR: Erythrocyte sedimentation rate; P: Present; A: Absent.