Table 1 Demographic and clinical characteristics of patients
Variable | Total (N = 140) | 2 L PEG + LB (n = 70) | 4 L PEG (n = 70) | p-value |
|---|---|---|---|---|
Age, mean (SD) | 58.7 (10.8) | 58.8 (11.2) | 58.5 (10.6) | 0.85 |
Male sex, n (%) | 84 (60.0) | 44 (62.9) | 40 (57.1) | 0.49 |
BMI (kg/m2), mean (SD) | 23.3 (4.2) | 22.6 (4.1) | 23.9 (4.3) | 0.08 |
Education level, n (%) | 0.20 | |||
None | 3 (2.1) | 3 (4.3) | 0 (0) | |
Below Bachelor’s degree | 92 (65.7) | 44 (62.9) | 48 (68.6) | |
Bachelor’s degree or higher | 45 (32.2) | 23 (32.8) | 22 (31.4) | |
Underlying diseases, n (%) | ||||
None | 46 (32.9) | 22 (31.4) | 24 (34.3) | 0.70 |
Hypertension | 43 (30.7) | 21 (30.0) | 22 (31.4) | 0.86 |
Dyslipidemia | 29 (20.7) | 15 (21.4) | 14 (20.0) | 0.84 |
Diabetes mellitus | 24 (17.1) | 11 (15.7) | 13 (18.6) | 0.65 |
Cardiovascular | 11 (7.9) | 8 (11.4) | 3 (4.3) | 0.12 |
Other | 20 (14.3) | 9 (12.9) | 11 (15.7) | 0.63 |
Laxative use, n (%) | 32 (22.9) | 17 (24.3) | 15 (21.4) | 0.69 |
Previous colonoscopy, n (%) | 53 (37.9) | 25 (35.7) | 28 (40.0) | 0.60 |
Indication for colonoscopy, n (%) | ||||
Colorectal cancer screening | 45 (32.2) | 23 (32.9) | 22 (31.4) | 0.86 |
Abdominal pain | 27 (19.3) | 10 (14.3) | 17 (24.3) | 0.13 |
Bowel habit change | 15 (10.7) | 11 (15.7) | 4 (5.7) | 0.10 |
History of colonic polyps | 12 (8.6) | 7 (10.0) | 5 (7.2) | 0.55 |
Lower GI bleeding | 12 (8.6) | 4 (5.7) | 8 (11.4) | 0.22 |
Chronic diarrhea | 9 (6.4) | 5 (7.1) | 4 (5.7) | 0.73 |
Iron deficiency anemia | 8 (5.7) | 3 (4.3) | 5 (7.2) | 0.72 |
Significant weight loss | 5 (3.6) | 4 (5.7) | 1 (1.4) | 0.37 |
Positive fecal occult blood test | 3 (2.1) | 0 (0) | 3 (4.3) | 0.25 |
Abnormal CT finding | 2 (1.4) | 2 (2.9) | 0 (0) | 0.50 |
Other | 2 (1.4) | 1 (1.4) | 1 (1.4) | 0.99 |