. Author manuscript; available in PMC: 2012 Jun 1.

Published in final edited form as: Arch Surg. 2011 Jun;146(6):724–732. doi: 10.1001/archsurg.2011.129

Table 1.

Patient demographics and clinical characteristics preoperatively.

Characteristic	Number (%)
Total number	46
Male	21 (45%)
Race (Caucasian)	39 (85%)
Age Diagnosis (yrs)
Mean ± SEM	41.7 ± 2.1
[range]	[24-76]
Type PET
NF-PET	14 (43%)
Functional PET	32 (57%)
Gastrinoma (glucagonoma)	30 (2)^a
Presenting symptom
Due to functional PET	32 (70%)^(b)
Due to pain	20 (30%)
MEN1 present	12 (26%)
Duration of symptoms at diagnosis (yrs) (Functional PETs)
Mean ± SEM	5.0 ± 0.9
[range]	[0.25-17.9]
Hormone elevation (fold increase)
median	12^(c)
Mean ± SEM	292 ± 213
[range]	[3-5500]

^(a)

Six patients with gastrinomas with MEN1 also had NF-PETs identified preoperatively. Two patients had glucagonoma.

^(b)

All patients with functional PETs presented with symptoms due to hormone excess state.

^(c)

Gastrin elevation in the 30 patients with gastrinomas preoperatively