Functionality is not an independent prognostic factor for pancreatic neuroendocrine tumors

Table 2 Characteristics of patients of different races, n (%)

Race	White (n = 357)	Asian1 (n = 230)	Others2 (n = 44)	P value
Tumor site				< 0.001
Head	80 (22.4)	94 (40.9)	15 (34.1)
Body	40 (11.2)	59 (25.7)	7 (15.9)
Tail	153 (42.9)	48 (20.9)	11 (25)
Unknown	84 (23.5)	29 (12.6)	11 (25)
Age (yr)				< 0.001
0-55	156 (43.7)	150 (65.2)	25 (56.8)
56-	201 (56.3)	80 (34.8)	19 (43.2)
Sex				0.002
Male	162 (45.4)	130 (56.5)	30 (68.2)
Female	195 (54.6)	100 (43.5)	14 (31.8)
Primary tumor				0.0733
T1	98 (27.5)	89 (38.7)	14 (31.8)
T2	117 (32.8)	79 (34.3)	11 (25)
T3	79 (22.1)	51 (22.2)	8 (18.2)
T4	35 (9.8)	10 (4.3)	5 (11.4)
Tx	28 (7.8)	1 (0.4)	6 (13.6)
Regional lymph node metastasis				0.0943
N0	157 (44)	53 (23)	19 (43.2)
N1	128 (35.9)	25 (10.9)	18 (40.9)
Nx	72 (20.2)	152 (66.1)	7 (15.9)
Distant metastasis				0.0543
M0	119 (33.3)	202 (87.8)	15 (34.1)
M1	16 (4.5)	12 (5.2)	3 (6.8)
Mx	222 (62.2)	16 (7)	26 (59.1)
Grade				< 0.0013
pNET G1	192 (53.8)	105 (45.7)	22 (50)
pNET G2	42 (11.8)	98 (42.6)	1 (2.3)
pNET G3 or pNEC	13 (3.6)	9 (3.9)	3 (6.8)
Gx	110 (30.8)	18 (7.8)	18 (40.9)
Functionality				< 0.001
N	277 (77.6)	117 (50.9)	33 (75)
I	40 (11.2)	93 (40.4)	4 (9.1)
O	40 (11.2)	20 (8.7)	7 (15.9)
Surgery				< 0.0013
Pancreaticoduodenectomy	111 (31.1)	51 (22.2)	20 (45.5)
Total pancreatectomy	33 (9.2)	7 (3)	5 (11.4)
Partial pancreatectomy	179 (50.1)	96 (41.7)	16 (36.4)
Local excision	31 (8.7)	76 (33)	3 (6.8)
Other surgeries	3 (0.8)	0 (0)	0 (0)

¹Consisting of Asian and Pacific Islander patients.

²Consisting of Black and American Indian patients and patients whose races were unknown.

³Rows with the title Tx, Nx, Mx, Gx and other surgeries were not involved in the chi-square test. pNET: Pancreatic neuroendocrine tumor; pNEC: Pancreatic neuroendocrine carcinoma; I: Insulinoma; N: Nonfunctional pNEN; O: Other functional pNEN.