Research Article

Adherence to CRC Screening and Surveillance Guidelines when Using Split-Dose Bowel Preparation

Table 4

Adjusted odds ratios (95% confidence intervals) based on logistic regression models for guideline-compliant physician recommendation.

Patient characteristicModel 1Model 2 with BBPS
Total score
Model 3 with BBPS segment scoreModel 4 with Aronchick
AOR95% Cl valueAOR95% Cl valueAOR95% Cl valueAOR95% Cl value

Noncompliant to split-dose preparation3.6(1.7–7.7)0.0012.9(1.3–6.5)0.012.4(1.1–5.4)0.032.5(1.1–5.9)0.03
BBPS total
 ≥61.0Reference
 =515.26(2.7–87.2)0.00
 <51.35(0.3–5.8)0.68
BBPS segment
 ≥21.0Reference
 0/15.62(2.4–13.0)0.00
Aronchick
 ≥Good1.0Reference
 Fair8.9(4.3–18.3)0.00
 Poor1.4(0.3–7.7)0.70
Age > 70 years old3.6(1.2–10.6)0.023.4(1.3–11.2)0.023.7(1.2–11.6)0.024.9(1.4–16.6)0.01
Male1.2(0.6–2.2)0.591.1(0.6–2.2)0.581.2(0.6–2.2)0.61.2(0.6–2.3)0.59
White1.4(0.6–3.5)0.481.5(0.6–3.7)0.411.8(0.7–4.9)0.241.4(0.5–3.8)0.53
Endoscopy at hospital a1.2(0.7–2.2)0.541.3(0.7–2.5)0.371.2(0.7–2.3)0.511.3(0.6–2.4)0.51
Number of polyps: 01.0Reference1.0Reference1.0Reference1.0
 10.7(0.3–1.6)0.350.7(0.3–1.6)0.360.7(0.3–1.6)0.340.7(0.3–2.0)0.54
 21.0(0.4–2.7)0.981.0(0.3–2.7)0.940.9(0.3–2.7)0.871.2(0.4–3.6)0.77
 33.0(1.4–6.3)0.0053.2(1.5-6.9)0.0033.3(1.5–7.0)0.004.4(2.0–10)0.00
Had ≥2 previous colonoscopies3.7(1.6–8.7)0.0033.3(1.4–8.0)0.0073.0(1.2–7.3)0.022.5(0.9–6.5)0.07
>12 hours or never till clear BM3.4(1.8–6.6)<0.0013.1(1.6–6.1)0.0022.8(1.4-5.4)0.002.6(1.3–5.4)0.01
Body mass index1.1(1.0-1.1)0.031.1(1.0-1.1)0.041.1(1.0-1.1)0.021.1(1.0-1.1)0.10

AOR: adjusted odds ratio; CI: confidence interval; BM: bowel movement. a versus ambulatory surgery centers.