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Table 1 Clinicopathological features of 47 postoperative patients with recurrent and non-recurrent PanNETs

From: Clinicopathological characteristics and risk factors for recurrence of well-differentiated pancreatic neuroendocrine tumors after radical surgery: a case-control study

  Non-recurrent PanNETs Recurrent PanNETs All**
Age ,median, years 51.5 49 50
Gender, n (%) Male 9(22.0) 5(12.2) 17(36.2)
Female 15(36.6) 12(29.3) 30(63.8)
Tumor function, n (%) Functional 5(12.2) 2(4.9) 9(19.1)
Non-functional 19 (46.3) 15(36.6) 38(80.9)
Tumor location, n (%) Body and tail 6(14.6) 9(22.0) 17(36.2)
Head 9(22.0) 5(12.2) 17(36.2)
Body 3(7.3) 0(0.0) 4(8.5)
Tail 6(14.6) 3(7.3) 9(19.1)
Tumor size, median (cm) 5 8.2 3.65
T T1 7(18.4) 0(0.0) 9(19.1)
T2 10(26.3) 6(15.8) 20(42.6)
T3 7(18.4) 8(21.1) 15(31.9)
N (lymph nodes status), n (%) Negative (N0) 19(47.5) 10(25.0) 34(72.3)
Positive (N1) 5(12.5) 6(15.0) 12(25.5)
Stage, n (%) IA 7(18.4) 0(0.0) 9(19.1)
IB 9(23.7) 2(5.3) 14(29.8)
IIA 4(10.5) 3(7.9) 7(14.9)
IIB 4(10.5) 9(23.7) 14(29.8)
Grade, n (%) G1 6(14.6) 2(4.9) 14(29.8)
G2 18(43.9) 15(36.6) 33(70.2)
Ki67 index, median,% 5 8.2 5
Ki67 index ≥ 10% 5(12.2) 3(7.3) 39(83.0)
< 10% 21(51.2) 12(29.3) 8(17.0)
Vascular invasion, n (%) Positive 1(2.6) 6(15.4) 7(14.9)
Negative 23(59.0) 9(23.1) 38(80.9)
Perineural invasion, n (%) Positive 0(0.0) 4(10.0) 4(8.5)
Negative 24(60.0) 12(30.0) 42(89.4)
Margin status, n (%) Positive 2(5.0) 6(15.0) 8(17.0)
Negative 22(55.0) 10(25.0) 38(80.9)
Localized or regional stage tumors, n (%) Regional 8(20.0) 14(35.0) 23(48.9)
Localized 16(40.0) 2(5.0) 23(48.9)
  1. *6 patients lost to follow-up and some clinical data is not clear are not be included in this table.
  2. **The size of the tumor and clinical staging for 3 patients were unknown; vascular tumor thrombus in 2 cases were unknown, perineural invasion and margin status in 1 case is unknown