Table 1 Comparison of clinicopathological features in the PG-DTR and TG groups

Gender

0.467

 Male

41 (32.0%)

93 (35.8%)

 Female

87 (68.0%)

167 (64.2%)

Age (years)

62 (53–68)

64.5 (56–71)

0.053

Tumor size (cm)

0.883

  ≥ 5

66 (51.6%)

132 (50.8%)

  < 5

62 (48.4%)

128 (49.2%)

Differentiation

0.733

 Well

44 (34.8%)

97 (37.3%)

 Moderate

48 (37.7%)

99 (38.1%)

 Poor

36 (27.5%)

64 (24.6%)

Preoperative GR

0.153

 Yes

5 (3.9%)

20 (7.7%)

 No

123 (96.1%)

Preoperative anemia

240 (92.3%)

0.940

 Yes

12 (9.4%)

25 (9.6%)

 No

116 (90.6%)

235 (90.4%)

Preoperative hypoalbuminemia

0.556

 Yes

11 (8.6%)

18 (6.9%)

 No

117 (91.4%)

242 (93.1%)

Pathological type

0.425

 Papillary adenocarcinoma

51 (39.8%)

103 (39.6%)

 Canalicular adenoma

45 (35.2%)

95 (36.5%)

 Mucinous adenocarcinoma

13 (10.1%)

26 (10.0%)

 Signet ring carcinoma

12 (9.4%)

13 (5.1%)

 Other

7 (5.5%)

23 (8.8%)

Infiltration depth

0.857

 T1

81 (63.3%)

155 (59.6%)

 T2

28 (21.9%)

58 (22.3%)

 T3

7 (5.5%)

16 (6.2%)

 T4

12 (9.3)

31 (11.9%)

Total operative time (min)

280 (190–385)

275 (205–378)

0.578

Blood loss (ml)

150 (58–183)

148 (77–195)

0.089

Lymph node metastasis

0.946

 N0

60 (46.9%)

123 (47.3%)

 N1

42 (32.8%)

79 (30.3%)

 N2

21 (16.4%)

48 (18.5%)

 N3

5 (3.9%)

10 (3.9%)

Pathological TNM stage

0.883

 I

53 (41.4%)

105 (40.4%)

 II

55 (43.0%)

118 (45.4%)

 III

20 (15.6%)

37 (14.2%)

Vessel carcinoma embolus

0.514

 Yes

59 (46.1%)

129 (49.6%)

 No

69 (53.9%)

131 (50.4%)

Nerve invasion

0.192

 Yes

55 (42.9%)

130 (50.0%)

 No

73 (57.1%)

130 (50.0%)

Distant metastasis

0.394

 Yes

58 (45.3%)

106 (40.8%)

 No

70 (54.7%)

154 (51.2%)

Local recurrence

0.921

 Yes

52 (40.6%)

107 (41.2%)

 No

76 (59.4%)

153 (58.8%)