Supplement 1. Demographic, Clinical, and Procedural Characteristics of patients excluded from the primary analysis due to incomplete colonoscopy procedures.

Factor
Age (y), mean (SD)	63.2 (11.9)
Male sex	11 (55.0 %)
Body mass index (kg/m²), mean (SD)	25.9 (5.0)
Smoking (current and ex)	3 (15.0 %)
Alcohol abuse	5 (25.0 %)
Diabetes mellitus	5 (25.0 %)
ASA class
1	5 (25.0 %)
2	9 (45.0 %)
3	6 (30.0 %)
Ambulatory patients	11 (55.0 %)
Indications
Screening	6 (30.0 %)
Grounds to suspect Tumor	4 (20.0 %)
Gastrointestinal bleeding or Anemia	4 (20.0 %)
Abdominal complaints	4 (20.0 %)
History of colorectal polyps	0 (0 %)
Surveillance after colorectal carcinoma	2 (10.0 %)
Others	0 (0 %)

Values are presented as (%) unless otherwise noted.

ASA, American Society of Anesthesiologists; SD, standard deviation; m², square meter; max, maximum; mg, milligram; min, minimum.