Table 1 Baseline of patients’ characteristics. Data is presented as Mean ± SD (standard deviation, SD) or numbers

EGD/colonoscopy/EGD + colonoscopy

24/16/36

26/18/34

0.892

Age, year (SD)

45.99 ± 12.79

47.82 ± 13.04

0.380

Gender, n (%)

  Male

35 (46.05)

35 (44.87)

0.883

BMI, kg/m2 (SD)

22.96 ± 3.17

22.61 ± 3.14

0.502

ASA (I/II/III)

59/16/1

63/13/2

0.685

Recruitment, n (%)

  Outpatient

68 (89.47)

67 (85.90)

0.500

Indication, n (%)

  Screening/ Symptomatic/ Surveillance

10/46/20

12/45/21

0.909

Comorbidities, n (%)

  Hypertension

9 (11.84)

10 (12.82)

0.854

  Diabetes

2 (2.63)

1 (1.28)

0.982

  Ischemic heart disease

0 (0.00)

4 (5.13)

0.135

  Cerebral vascular insuffificiency

2 (2.63)

2 (2.56)

1.000

  Arrhythmia

0 (0.00)

0 (0.00)

  COPD

3 (3.95)

1 (1.28)

0.594

Intraoperative Biopsy, n (%)

25 (32.89)

30 (38.46)

0.471

^a Endoscopic diagnosis

  Reflux Esophagitis

4

5

-

  Barrett Esophagus

3

4

-

  Chronic Superficial Gastritis

23

19

-

  Chronic Atrophic Gastritis

14

15

-

  Gastric Polyp

10

8

-

  Peptic Ulcer

4

6

-

  Colorectal Polyp

15

13

-

  Colorectal Erosion

4

5

-

  Other Dieases

19

14

-