Table 2 Baseline characteristics, intraoperative and postoperative outcomes between the intracorporeal barbed suture reinforcement and control groups in matched patients

Age (year)

65.00 (6.71)

60.00 (10.70)

0.642

Sex

0.033

 Male

67 (54.47%)

65 (52.85%)

 Female

56 (45.53%)

58 (47.15%)

BMI (kg/m²)

22.32 (2.74)

21.51 (2.77)

0.059

ASA

0.232

 Grade 1

61 (49.59%)

75 (60.98%)

 Grade 2

61 (49.59%)

47 (38.21%)

 Grade 3

1 (0.81%)

1 (0.81%)

Smoking

 < 0.001

 Yes

32 (26.02%)

32 (26.02%)

 No

91 (73.98%)

91 (73.98%)

Diabetes

0.222

 Yes

20 (16.26%)

11 (8.94%)

 No

103 (83.74%)

112 (91.06%)

Anemia

0.053

 Yes

14 (11.38%)

12 (9.76%)

 No

109 (88.62%)

111 (90.24%)

Preoperative albumin level

 < 0.001

 Normal

120 (97.56%)

120 (97.56%)

 Low

3 (2.44%)

3 (2.44%)

Preoperative adjuvant chemoradiotherapy

0.028

 Yes

11 (8.94%)

12 (9.76%)

 No

112 (91.06%)

111 (90.24%)

Previous abdominal surgery history

0.039

 Yes

5 (4.07%)

6 (4.88%)

 No

118 (95.93%)

117 (95.12%)

Tumor size (cm)

4.00 (1.46)

4.00 (1.63)

0.164

Stage

0.098

 Stage I

10 (8.13%)

7 (5.69%)

 Stage II

41 (33.33%)

43 (34.96%)

 Stage III

72 (58.54%)

73 (59.35%)

Tumor distance (cm)

7.00 (1.14)

7.00 (1.23)

0.033

Stapler firings

 < 0.001

 < 3

115 (93.50%)

115 (93.50%)

 ≥ 3

8 (6.50%)

8 (6.50%)

Reserve of LCA

0.117

 Yes

79 (64.23%)

72 (58.54%)

 No

44 (35.77%)

51 (41.46%)

Anastomosis level (cm)

3.00 (1.10)

3.00 (1.18)

0.043

Number of retrieved LNs

18.00 (4.83)

17.00 (3.79)

0.224

Surgical time (min)

150.00 (33.12)

130.00 (30.46)

0.576

Estimated blood loss (ml)

100.00 (69.15)

100.00 (74.56)

0.027

Postoperative ventilation time (h)

72.00 (19.78)

72.00 (19.76)

0.137

AL

0.334

 Yes

3 (2.44%)

13 (10.57%)

 No

120 (97.56%)

110 (89.43%)

Hospital stay (day)

7.00 (2.32)

8.00 (4.14)

0.313