Table 2

Univariate analysis of prognostic factors in 82 patients with endocrine tumours of duodenopancreas

Variable		Comparison of death rates				Comparison of survival rates
Variable		% of deaths	p Value			Risk ratio for mortality (95% CI)^*	5 year survival rates (%)	p Value^**
Sex
Male	37.7	0.444^3-151		1.3 (0.2 to 4.1)	61.1	0.446
Female	29.7				65.3
Liver metastases (LM)
Yes	57.2	0.001^3-151		7.4 (3.5 to 15.7)^‡	40.2	0.0001
No	0.0				100
LM progression
Yes	66.7	<0.0001^††		^‡‡	34.4	0.0001
No	0.0				100.0
Other metastases
Yes	73.3	0.001^3-151		4.4 (2.0 to 9.5)	30.0	0.0001
No	25.3				70.5
Locoregional involvement
Yes	76.9	0.001^3-151		6.5 (2.9 to 14.9)	24.2	0.0001
No	14.3				86.5
Cell differentiation of the tumour
Good	28.2	0.006^††		11.7 (4.4 to 31.5)	70.6	0.0001
Poor	77.9				16.7
Complete resection of the primary tumour
Yes	14.3	0.001^3-151		4.8 (2.0 to 12.0)	85.3	0.0002
No	55.0				42.0
Lymph node metastases
Yes	48.0	0.001^3-151		7.4 (2.2 to 25.2)	46.6	0.0002
No	10.0				92.5
Size of the primary tumour
< 3 cm	11.8	0.001^3-151		4.9 (1.7 to 14.3)	88.2	0.0011
⩾ 3 cm	50.0				46.6
Functioning tumour
Yes	22.5	0.02^3-151		2.7 (1.2 to 6.1)	73.6	0.009
No	45.2				53.2

↵3-151 The p value was calculated by χ² test. ^††The p value was calculated by Fisher’s exact test. ^‡Risk ratio calculated after the variable was forced in the Cox model. ^‡‡Risk ratio not determined because of the lack of deaths in the group without progressive LM. ^*CI denotes confidence interval. ^**The p value was calculated by the log rank test.