Generalized Linear Mixed Model of Factors Associated with Colonoscopy Fair/Poor/Inadequate vs Excellent/Good/Adequate Preparation (n = 2,016)
| Factors | Univariable Model | Multivariable Model | ||
|---|---|---|---|---|
| Odds Ratio (95% CI) | P value | Odds Ratio (95% CI) | P value | |
| Age | ||||
| <60 | 1.41 (0.97-2.07) | 0.075 | 1.38 (0.94-2.03) | 0.11 |
| ≥60.0 | Reference | Reference | ||
| BMI | ||||
| <30.0 | 0.86 (0.60-1.30) | 0.536 | ||
| ≥30.0 | Reference | |||
| Sex | ||||
| Female | 0.81 (0.56-1.19) | 0.281 | ||
| Male | Reference | |||
| Race | ||||
| White | 0.71 (0.36-1.42) | 0.336 | ||
| Others | 0.78 (0.30-2.06) | 0.619 | ||
| Black | Reference | |||
| Ethnicity | ||||
| Hispanic | 0.73 (0.27-1.98) | 0.539 | ||
| Non-Hispanic/unknown | Reference | |||
| Education | ||||
| ≤8th grade | 1.42 (0.39-5.13) | 0.592 | ||
| HS/GED | 1.29 (0.81-2.08) | 0.287 | ||
| College or higher | Reference | |||
| Income | ||||
| <$40,000 | 2.63 (1.68–4.10) | <0.001 | 2.48 (1.56-3.95) | <0.001 |
| $40,000–<$80,000 | 0.91 (0.54-1.55) | 0.727 | 0.95 (0.55-1.63) | 0.85 |
| ≥$80,000 | Reference | Reference | ||
| Not reported | 1.00 (0.35-2.87) | 0.997 | 1.04 (0.36-2.99) | 0.94 |
| Current smoker | ||||
| Yes | 2.57 (1.38-4.78) | 0.003 | 1.88 (0.98-3.62) | 0.06 |
| No | Reference | Reference | ||
| Unevaluable FIT | ||||
| Yes | 0.44 (0.11-1.80) | 0.251 | ||
| No | Reference | |||
| Colonoscopy type | ||||
| Screening | 0.90 (0.61-1.32) | 0.580 | ||
| Surveillance | Reference | |||
| Watson method score | ||||
| Abnormal | 1.24 (0.82-1.85) | 0.307 | ||
| Normal | Reference | |||
| Mendes method score | ||||
| Abnormal | 1.38 (0.90-2.10) | 0.140 | 1.44 (0.94-2.22) | 0.09 |
| Normal | Reference | Reference | ||
Abbreviations: CI, confidence intervals; BMI, body mass index; HS, high school; GED, General Equivalency Development; FIT, fecal immunochemical test.