Table 1 Charateristic data of patients undergoing pancreatic surgery before and after CBPS.

From: Bilateral paravertebral block reduces complications after pancreatectomy in retrospective cohort analysis

Parameters

Before CBPS

After CBPS

PVB (n = 374)

Non-PVB (n = 2986)

P

SMD

PVB

(n = 369.5)

Non-PVB

(n = 2612.0)

P

SMD

Gender, n (male%)

227(60.7)

1709(57.2)

0.222

0.070

216.4 (58.6)

1494.5 (57.2)

0.662

0.027

Age, mean(SD),y

58.5 ± 11.7

60.0 ± 12.2

0.025*

0.125

59.9 ± 11.9

60.0 ± 12.2

0.840

0.013

BMI, mean(SD),kg/m2

22.7 ± 2.9

22.7 ± 3.1

0.864

0.010

22.7 ± 2.9

22.7 ± 3.1

0.836

0.012

ASA

  

0.464

0.063

  

0.532

0.062

 Ⅰ, n (%)

13(3.5)

72(2.4)

  

12.0(3.3)

63.0(2.4)

  

 Ⅱ, n (%)

336(89.8)

2716(91.0)

  

329.8(89.3)

2375.5(90.9)

  

 Ⅲ, n (%)

25(6.7)

198(6.6)

  

27.7(7.5)

173.5(6.6)

  

Hypertension, n (%)

111(29.7)

942(31.5)

0.479

0.041

120.7(32.7)

824.5(31.6)

0.703

0.024

Diabetes, n (%)

83(22.2)

619(20.7)

0.501

0.036

93.6(25.3)

541.8(20.7)

0.075

0.109

Biliary stented, n (%)

22(5.9)

186(6.2)

0.909

0.015

18.3(5.0)

162.7(6.2)

0.315

0.055

Preoperative jaundice, n (%)

145(38.8)

964(32.3)

0.014*

0.136

112.4(30.4)

840.6(32.2)

0.494

0.038

Preoperative Chemotherapy, n (%)

153(5.1)

22(5.9)

0.618

0.015

172.8(5.1)

188.8(5.7)

0.664

0.024

Pancreatic texture

  

0.049*

0.139

  

0.685

0.053

 Hard, n (%)

72(19.3)

743(24.9)

  

85.6(23.2)

652.3(25.0)

  

 Medium, n (%)

124(33.2)

885(29.6)

  

117.0(31.6)

772.7(29.6)

  

 Soft, n (%)

178(47.6)

1358(45.5)

  

166.9(45.2)

1187.0(45.4)

  

Anesthesia time, median(IQR), h

3.7(3.1,4.3)

3.6(2.9,4.2)

0.052

0.053

3.7(3.1,4.3)

3.6(2.9,4.2)

0.366

0.050

Operation time, median(IQR),h

3.0(2.3,3.4)

2.9(2.3,3.5)

0.429

0.003

3.0(2.3,3.4)

2.9(2.3,3.5)

0.919

0.006

Operation method

  

< 0.001*

0.306

  

0.895

0.025

 PD, n (%)

201(53.7)

1683(56.4)

  

211.8(57.3)

1473.3(56.4)

  

 PP, n (%)

76(20.3)

1303(43.6)

  

102.9(27.9)

756.7(29.0)

  

 Other, n (%)

97(25.9)

442(14.8)

  

54.8(14.8)

382.0(14.6)

  

Surgical approach

  

< 0.001*

0.313

  

0.234

0.205

 Laparoscopic assistance, n (%)

5(1.3)

165(5.5)

  

19.2(5.2)

146.1(5.6)

  

 Open surgery, n (%)

369(98.7)

2761(92.5)

  

350.3(94.8)

2412.6(92.4)

  

 Laparoscopic conversion-open surgery, n (%)

0(0.0)

9(0.3)

  

0.0(0.0)

9.0(0.3)

  

 Da Vinci robot assisted surgery, n (%)

0(0.0)

51(1.7)

  

0.0(0.0)

45.2(1.7)

  

Intraoperative vascular anastomosis, n (%)

55(14.7)

489(16.4)

0.456

0.046

57.1(15.4)

427.9(16.4)

0.668

0.025

  1. *P value was less than 0.05, with statistical significance. CBPS: Covariate balancing propensity score; SMD:Standardized mean difference; PVB: Paravertebral block; Non-PVB: Non-Paravertebral block; BMI: Body mass index; ASA: American Society of Anesthesiologists physical status classification; PD:Pancreatoduodenectomy; PP: Partial pancreatectomy; n: numbers; y: years; h:hours.
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