Clinical features and prognostic factors of duodenal neuroendocrine tumours: A comparative study of ampullary and nonampullary regions

Table 1 Basic information of duodenal neuroendocrine tumour patients, n (%)

Clinical features	Duodenal neuroendocrine tumours (n = 29)
Gender
Males	34.5 (10/29)
Females	65.5 (19/29)
Tumour site
Ampullary region	24.1 (7/29)
Nonampullary region	75.9 (22/29)
Age at diagnosis
Median age (yr)	55.7 ± 10.3
30-39	7.0 (2/29)
40-49	24.1 (7/29)
50-59	34.5 (10/29)
60-69	24.1 (7/29)
≥ 70	10.3 (3/29)
Symptoms
Abdominal pain	51.7 (15/29)
Abdominal distension	17.2 (5/29)
Acid reflux	17.2 (5/29)
Nausea	13.8 (4/29)
Vomiting	3.4 (1/29)
Black stools	7.0 (2/29)
Poor appetite	7.0 (2/29)
No symptoms	20.7 (6/29)
Tumour size	2.6 ± 1.6 cm
≤ 1 cm	13.8 (4/29)
1-2 cm	20.7 (6/29)
≥ 2 cm	65.5 (19/29)
Histological classification and grading
NET-G1	48.3 (14/29)
NET-G2	44.8 (13/29)
NET-G3	3.4 (1/29)
NEC	3.4 (1/29)
Tumour staging
I	13.8 (4/29)
II	55.2 (16/29)
III	13.8 (4/29)
IV	17.2 (5/29)
Tumour type
Nonfunction	96.6 (28/29)
Function(gastrinoma)	3.4 (1/29)
Surgery
Yes	86.2 (25/29)
No	13.8 (4/29)
Postoperative chemotherapy
Yes	20.7 (6/29)
No	79.3 (23/29)
Survival status
Death	41.4 (12/29)
Survival	58.6 (17/29)