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Table 1 Demographics details and indications for colonoscopy

From: Water exchange colonoscopy decreased adenoma miss rates compared with literature data and local data with CO2 insufflation: an observational study

Variable

Study 1 (WE group) (n = 86)

Study 2 (CO2 group) (n = 86)

P value

Male gender, n (%)

43 (50.0)

47 (54.7)

0.647

Age, mean (SD), years

53.4 (10.7)

52.9 (9.6)

0.747

Body weight, mean (SD), kg

66.8 (14.1)

67.7 (12.4)

0.649

Body mass index, mean (SD), kg/m2

25.2 (4.3)

24.7 (3.3)

0.478

Previous abdominal surgery, n (%)

30 (34.9)

24 (27.9)

0.412

Active smoker, n (%)

18 (20.9)

13 (15.1)

0.428

Family history of CRC in first degree relative, n (%)

3 (3.5)

7 (8.1)

0.329

Indications for colonoscopy, n (%)

0.032

 Screening

33 (38.4)

48 (55.8)

 Surveillance

53 (61.6)

38 (44.2)

  1. Abbreviation: WE Water exchange, SD standard deviation, CRC colorectal cancer