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Table 1 Demographic characteristics and cardiopulmonary comorbidities of enrolled participants

From: Comparison of low-pressure and standard-pressure pneumoperitoneum laparoscopic cholecystectomy in patients with cardiopulmonary comorbidities: a double blinded randomized clinical trial

 

LPLC group (n = 62)

SPLC group (n = 62)

P value§

Age (y) *

61.9(8.1)

64.9(8.4)

0.059&

Sex

  

0.857

Female

33(53.2%)

34(54.8%)

 

Male

29(46.8%)

28(45.2%)

 

BMI (kg/m2) *

24.4(3.4)

25.1(3.9)

0.290&

ASA classification

  

0.794

I

8(12.9)

9(14.5)

 

II or higher

54(87.1)

53(85.5)

 

Preoperative laboratory results

   

Count of white blood cell (×109/L) †

5.97(3.03–21.98)

6.11(2.48–17.97)

0.840#

Hemoglobin (g/L) †

137.7(75–174)

138.0(110–165)

0.289#

Thrombocyte (×109/L) †

209.5(126–466)

215.5(95–514)

0.736#

Albumin (g/L) †

41.8(27–48)

42.3(32–49)

0.689#

Alanine aminotransferase (IU/L) †

20.95(6-358)

42.34(8-448)

0.252#

Serum creatinine (mmol/L) †

68.7(45–127)

65.7(35–108)

0.944#

Cardiopulmonary Comorbidities

   

Hypertension

26(41.9%)

31(50.0%)

0.368

Diabetes mellitus

13(21.0%)

13(21.0%)

1.000

Coronary heart disease

8(12.9%)

17(27.4%)

0.044

Arrhythmia

5(8.10%)

7(11.3%)

0.544

Pulmonary emphysema

8(12.9%)

10(16.1%)

0.610

Chronic bronchitis

3(4.8%)

5(8.1%)

0.717¶

Bronchial asthma

3(4.8%)

2(3.2%)

1.000¶

History of pulmonary surgery

1(1.6%)

1(1.6%)

1.000¶

History of cardiac or mediastinal surgery

0(0)

2(3.2%)

0.496¶

Smoking>5 years

9(14.5%)

6(9.7%)

0.409¶

Liver cirrhosis

1(1.6%)

0(0)

1.000¶

History of biliary inflammation or biliary pancreatitis

30(48.4%)

14(22.6%)

0.003¶

History of PTCD

1(1.6%)

1(1.6%)

1.000¶

History of ERCP

3(4.8%)

1(1.6%)

0.619¶

  1. Values in parentheses are percentages unless indicated otherwise; *values are mean (SD); †values are median (range). BMI, body-mass index. ASA, American Society of Anesthesiologists. PTCD, percutaneous transhepatic cholangial drainage. ERCP, endoscopic retrograde cholangiopancreatography. §χ2 test, except & One-way ANOVA, ¶ Fisher’s exact test and #Mann–Whitney U test