Table 4.

Multivariate analysis of factors associated with mortality among patients diagnosed with an insulinoma in Finland during 1980–2010 (n = 75^a).

Variable	Hazard ratio	95% CI	P value
Age at diagnosis	1.05	1.02–1.08	0.003
Tumour localization (head/neck vs body/tail)	1.90	0.72–5.03	0.197
Tumour size (≥2 cm vs <2 cm)	2.49	0.93–6.65	0.070
Distant metastases	3.71	1.18–11.67	0.025

Bold values indicate a statistically significant hazard ratio (P  < 0.05, Cox proportional hazards model).

^aFour of the 79 patients in the total cohort were excluded from this multivariate analysis, due to missing data regarding tumour size (n = 4) and localization (n = 2).