Table 2 Demographic and basic clinical characteristics of participants

Patient age: mean ± SD (range)

60.7 ± 11.8 (25–85)

Age group

 18–28

4 (1.9%)

29–39

8 (3.8%)

 40–50

37 (17.9%)

 51–61

55 (26.2%)

 62–72

61 (29.0%)

 73–83

43 (20.5%)

 > 83

2 (1.0%)

Gender

 Male

108 (51.4%)

 Female

102 (48.6%)

BMI, kg/m², mean ± SD

29.0 ± 4.5

Smokers

67 (31.9)

Alcoholic

17 (8.0%)

Comorbidity

122 (58.0%)

 Coronary artery disease

39 (18.5%)

 Congestive heart failure

24 (11.4%)

 Cardiac arrhythmia

8 (3.8%)

 Hypertension

57 (27.1%)

 Hyperlipidemia

38 (18.1%)

 Diabetes

51 (24.3%)

 Cerebrovascular accident

11 (5.2%)

 Pulmonary disorders

9(4.2%)

 Chronic renal insufficiency

19(9.0%)

 Thyroid disorders

11(5.2%)

 Irritable bowel syndrome

22 (10%)

 Inflammatory bowel disease

6 (2.9%)

 Other GI disorders

3 (1.4%)