Table 3.
Results of the Logistic Regression Analysis of Factors Responsible for Painful Colonoscopy.
| Factors | Univariate analysis | Multivariate analysis | |||
|---|---|---|---|---|---|
| Odds ratio (95% CI) | P-value | Odds ratio (95% CI) | P-value | ||
| Older age, years | 0.997 (0.972–1.023) | 0.823 | |||
| BMI | |||||
| Normal (18.5–25.0 kg/m2) | 1 | ||||
| Low (<18.5 kg/m2) | 1.850 (0.769–4.460) | 0.170 | |||
| High (>25.0 kg/m2) | 1.260 (0.519–3.060) | 0.608 | |||
| History of colonoscopy | |||||
| Absent | 1 | ||||
| Present | 1.001 (0.514–1.950) | 0.998 | |||
| Previous abdominal surgery | |||||
| Absent | 1 | ||||
| Present | 1.334 (0.676–2.632) | 0.405 | |||
| Routine use of laxatives | |||||
| Absent | 1 | ||||
| Present | 0.718 (0.234–2.204) | 0.563 | |||
| Inadequate bowel preparation* | |||||
| Absent | 1 | ||||
| Present | 1.238 (0.539–2.842) | 0.614 | |||
| Sigmoid colon diverticulosis | |||||
| Absent | 1 | 1 | |||
| Present | 2.710 (1.215–6.044) | 0.015 | 2.496 (1.103–5.646) | 0.028 | |
| Use of a small-caliber colonoscope | |||||
| Absent | 1 | 1 | |||
| Present | 0.412 (0.204–0.832) | 0.013 | 0.436 (0.214–0.889) | 0.022 | |
| Inexperienced operator | |||||
| Absent | 1 | ||||
| Present | 0.829 (0.397–1.735) | 0.620 | |||
BMI, body mass index; CI, confidence interval
*Fair, poor, or inadequate based on the Aronchick Bowel Preparation scale.