Table 1.
Baseline Characteristics of All Patients
| Characteristics | Room temperature water (n = 47) | Mildly cool water (n = 47) | P-value |
|---|---|---|---|
| Age (yr) | 68 (34-86) | 66 (21-83) | 0.849 |
| Sex (male/female) | 29/18 | 31/16 | 0.668 |
| Indication | 0.507 | ||
| Screening | 23 (48.9) | 19 (40.4) | |
| FOBT positive results | 7 (14.9) | 11 (23.4) | |
| EMR | 10 (21.3) | 7 (14.9) | |
| Surveillance | 7 (14.9) | 10 (21.3) | |
| Bowel preparation | |||
| % rated (excellent, good or fair) | 44 (93.7)/3 (6.3) | 43 (91.5)/4 (8.5) | 0.694 |
| Insertion time·median (sec) | 472 (192-1423) | 539 (217-1455) | 0.167 |
| Observation time·median (sec) | 746 (382-3800) | 763 (416-1998) | 0.865 |
| Pain during insertion | |||
| None/mild/moderate/severe | 11 (23.4)/29 (61.7)/6 (12.8)/1 (12.8) | 10 (21.3)/27 (57.4)/9 (19.1)/1 (2.2) | 0.869 |
| Pain during colonoscopy | |||
| None/mild/moderate/severe | 31 (66.0)/13 (27.7)/3 (6.3)/0 (0.0) | 29 (61.7)/15 (31.9)/3 (6.4)/0 (0.0) | - |
| Colonoscopists | |||
| Experts/trainee | 31 (66.0)/16 (34.0) | 26 (55.3)/21 (44.7) | 0.291 |
| Underlying disease | |||
| Prostatic hyperplasia | 1 (2.1) | 0 (0.0) | 0.315 |
| Glaucoma | 0 (0.0) | 1 (2.1) | 0.315 |
| Arrhythmia | 1 (2.1) | 0 (0.0) | 0.315 |
FOBT, fecal occult blood test; EMR, endoscopic mucosal resection.
Data are presented as median (range), n, or n (%).