Table 2.
Polyp and adenoma detection rates by total Boston Bowel Preparation Scale score at Boston Medical Center (BMC) and within the Clinical Outcomes Research Initiative (CORI).
| Total BBPS score |
Frequency, n (%) |
OR (95% CI) | Adjusted OR (95% CI)1 |
|
|---|---|---|---|---|
| Boston Medical Center | ||||
| Polyp | 9 8 7 6 |
663 (46.0) 481 (52.2) 391 (53.3) 313 (51.1) |
ref 1.3 [1.1-1.5] 1.3 [1.1-1.6] 1.2 [1.0-1.5] |
ref 1.2 [1.0-1.5] 1.3 [1.0-1.5] 1.1 [0.94-1.4] |
| Adenoma | 9 8 7 6 |
490 (34.3) 354 (38.8) 295 (40.6) 243 (40.4) |
ref 1.2 [1.0-1.4] 1.3 [1.1-1.6] 1.3 [1.1-1.6] |
ref 1.1 [0.96-1.4] 1.2 [1.0-1.5] 1.2 [0.99-1.5] |
|
Advanced
adenoma |
9 8 7 6 |
59 (4.1) 60 (6.5) 55 (7.5) 46 (7.6) |
ref 1.6 [1.1-2.4] 1.9 [1.3-2.8] 1.9 [1.3-2.9] |
ref 1.6 [1.1-2.3] 1.7 [1.1-2.5] 1.8 [1.2-2.7] |
| Clinical Outcomes Research Initiative | ||||
| Polyp | 9 8 7 6 |
943 (39.7) 424 (44.7) 433 (47.9) 664 (50.9) |
ref 1.2 [1.1-1.4] 1.4 [1.2-1.6] 1.6 [1.4-1.8] |
ref 1.2 [1.0-1.4] 1.4 [1.2-1.6] 1.5 [1.3-1.7] |
| Polyp > 9 mm | 9 8 7 6 |
131 (5.5) 48 (5.1) 44 (4.9) 117 (9.0) |
ref 0.91 [0.65-1.3] 0.88 [0.62-1.2] 1.7 [1.3-2.2] |
ref 0.88 [0.63-1.2] 0.85 [0.60-1.2] 1.6 [1.2-2.0] |
1
Adjusted for age, gender, and race/ethnicity in BMC data; adjusted for age, gender in CORI (race/ethnicity not available)
BBPS, Boston Bowel Preparation; CI, confidence interval; OR, odds ratio; ref, reference