Table 3.
Factors associated with primary outcomes by univariate logistic regression analysis
| Adenoma detection | Odds ratio | P value | ||
|---|---|---|---|---|
| Yes (n = 1895) | No (n = 921) | (95% CI) | ||
| Male (%) | 1212 (64) | 446 (48) | 1.89 (1.61–2.22) | <0.001 |
| FIT: gFOBT (%) | 1575 (83): 320 (17) | 592 (64): 329 (36) | 2.74 (2.28–3.28) | <0.001 |
| Endoscopist Specialty (%) | ||||
| Gastroenterology (GI) | 1459 (77) | 732 (79.5) | 0.86 (0.71–1.05) | 0.1 |
| No GI* | 436 (23) | 189 (20.5) | ||
| Reported Cecal Intubation (%) | 1860 (98) | 862 (94) | 3.64 (2.38–5.57) | <0.001 |
| Reported Rectal Retroflexion (%) | 1859 (98) | 871 (95) | 2.96 (1.92–4.58) | <0.001 |
| Withdrawal Time (minutes) | 15±10 | 9±6 | 1.15 (1.13–1.17) | <0.001 |
| Bowel Preparation Quality (%) | ||||
| Excellent | 549 (29) | 285 (31) | 0.91 (0.77–1.08) | 0.3 |
| Acceptable | 1049 (55) | 474 (52) | 1.17 (0.99–1.37) | 0.05 |
| Fair | 151 (8) | 69 (8) | 1.07 (0.80–1.44) | 0.7 |
| Poor | 11 (1) | 16 (2) | 0.33 (1.53–0.72) | 0.005 |
| Not Reported | 135 (7) | 77 (8) | 0.84 (0.63–1.13) | 0.2 |
| Advanced adenoma detection | Odds ratio | P value | ||
|---|---|---|---|---|
| Yes (n = 917) | No (n = 1899) | (95% CI) | ||
| Male (%) | 635 (69) | 1023 (54) | 1.93 (1.62–2.28) | <0.001 |
| FIT: gFOBT (%) | 770 (84): 147 (16) | 1397 (74): 502 (26) | 1.88 (1.54–2.31) | <0.001 |
| Endoscopist Specialty (%) | ||||
| Gastroenterology (GI) | 697 (76) | 1494 (79) | 0.86 (0.71–1.04) | 0.1 |
| No GI* | 220 (24) | 405 (21) | ||
| Reported Cecal Intubation (%) | 894 (98) | 1828 (96) | 1.51 (0.94–2.43) | 0.09 |
| Reported Rectal Retroflexion (%) | 896 (98) | 1834 (97) | 1.51 (0.92–2.45) | 0.1 |
| Withdrawal Time (minutes) | 19 ± 12 | 10 ± 6 | 1.16 (1.14–1.18) | <0.001 |
| Bowel Preparation Quality (%) | ||||
| Excellent | 261 (28.5) | 573 (30) | 0.92 (0.77–1.10) | 0.4 |
| Acceptable | 506 (55) | 1017 (54) | 1.07 (0.91–1.25) | 0.4 |
| Fair | 73 (8) | 147 (8) | 1.03 (0.77–1.38) | 0.8 |
| Poor | 2 (0.5) | 25 (1) | 0.16 (0.04–0.69) | 0.01 |
| Not Reported | 75 (8) | 137 (7) | 1.15 (0.85–1.54) | 0.4 |
| Colorectal cancer detection | Odds ratio | P value | ||
|---|---|---|---|---|
| Yes (n = 101) | No (n = 2816) | (95% CI) | ||
| Male | 69 (68) | 1589 (59) | 1.53 (1.00–2.34) | 0.05 |
| FIT: gFOBT (%) | 67 (66): 34 (34) | 2100 (77): 615 (23) | 0.58 (0.38–0.88) | 0.01 |
| Endoscopist Specialty (%) | ||||
| Gastroenterology (GI) | 76 (75) | 2115 (78) | 0.86 (0.54–1.37) | 0.5 |
| No GI* | 25 (25) | 600 (22) | ||
| Reported Cecal Intubation (%) | 87 (86) | 2635 (97) | 0.19 (0.10–0.35) | <0.001 |
| Reported Rectal Retroflexion (%) | 90 (89) | 2640 (97) | 0.23 (0.12–0.45) | <0.001 |
| Withdrawal Time (minutes) | 16 ± 11 | 13 ± 9 | 1.02 (1.01–1.04) | 0.002 |
| Bowel Preparation Quality (%) | ||||
| Excellent | 26 (25.5) | 808 (30) | 0.82 (0.52–1.29) | 0.4 |
| Acceptable | 55 (54.5) | 1468 (54) | 1.02 (0.68–1.51) | 0.9 |
| Fair | 11 (11) | 209 (7.5) | 1.47 (0.77–2.78) | 0.2 |
| Poor | 0 | 27 (1) | - | - |
| Not Reported | 9 (9) | 203 (7.5) | 1.21 (0.60–2.44) | 0.6 |
| Advanced adenoma and/or colorectal cancer detection | OR | P value | ||
|---|---|---|---|---|
| Yes (n = 958) | No (n = 1858) | (95% CI) | ||
| Male (%) | 659 (69) | 999 (54) | 1.90 (1.61–2.23) | <0.001 |
| FIT: gFOBT (%) | 811 (85): 147 (15) | 1356 (73): 502 (27) | 2.04 (1.67–2.50) | <0.001 |
| Endoscopist Specialty (%) | ||||
| Gastroenterology (GI) | 728 (76) | 1463 (79) | 0.86 (0.71–1.03) | 0.1 |
| No GI* | 230 (24) | 395 (21) | ||
| Reported Cecal Intubation (%) | 931 (97) | 1791 (96) | 1.29 (0.82–2.03) | 0.3 |
| Reported Rectal Retroflexion (%) | 936 (98) | 1794 (97) | 1.52 (0.93–2.48) | 0.1 |
| Withdrawal Time (minutes) | 19 ± 12 | 10 ± 6 | 1.16 (1.15–1.18) | <0.001 |
| Bowel Preparation Quality (%) | ||||
| Excellent | 275 (28.5) | 559 (30) | 0.94 (0.79–1.11) | 0.5 |
| Acceptable | 529 (55) | 994 (54) | 1.07 (0.92–1.25) | 0.4 |
| Fair | 76 (8) | 144 (8) | 1.03 (0.77–1.37) | 0.9 |
| Poor | 2 (0.5) | 25 (1) | 0.15 (0.04–0.65) | 0.01 |
| Not Reported | 76 (8) | 136 (7) | 1.09 (0.82–1.46) | 0.6 |
CI, Confidence interval; FIT, Fecal immunochemical testing; gFOBT, Guaiac-based fecal occult blood testing; OR, Odds ratio.
*Internal Medicine, General Surgery, Nurse Practitioner.