Table 4. Characteristics of colonoscopies performed with successive variations in procedure times. Data are based on total time spent per colonoscopy (n = 7209) in the group of hospitals with ≥ 90 % completeness (procedure times are missing for 607 out of 7816 colonoscopies in this group of hospitals).
| Procedure time-dependent categorization of colonoscopies in hospital group 4 | ||||||
| Group I, 50 % with shortest procedure times | Group II, 50 % – 69 % (20 % succeeding procedure times) | Group III, 70 % – 89 % (20 % succeeding procedure times) | Group IV, > 90 % (10 % with longest procedure times) | Total | P value | |
| Procedure time range (min.) | < 20 | 20 – 25 | 26 – 41 | > 41 | ||
| Colonoscopy form data | ||||||
| Colonoscopy reports | 3557 | 1501 | 1412 | 739 | 7209 | |
| Cecum intubation failure (%) | 54 (1.5) | 24 (1.6) | 47 (3.3) | 27 (3.7) | 152 (2.1) | < 0.001 |
| On-site adverse events(%) | 29 (0.8) | 12 (0.8) | 20 (1.4) | 19 (2.6) | 80 (1.1) | < 0.001 |
| Total adverse events (%) 1 | 38 (1.1) | 18 (1.2) | 31 (2.2) | 27 (3.7) | 114 (1.6) | < 0.001 |
| PREM form data | ||||||
| PREM forms(%) | 2541 (71) | 1101 (73) | 1017 (72) | 564 (76) | 5223 (73) | 0.04 |
| Severe pain | 202 (7.9) | 155 (14.1) | 173 (17.0) | 101 (17.9) | 631 (12.1) | < 0.001 |
| Negative comments(%) | 67 (2.6) | 29 (2.6) | 53 (5.2) | 30 (5.3) | 179 (3.4) | < 0.001 |
1
Combination of adverse events registered in colonoscopy reports (“on site” adverse events extracted from colonoscopy form) and events extracted from free text comments in patients´ reply form.