Table 3

Predictive marginal estimates of PO, KSO and other statistically significant secondary outcomes

OutcomeWAS
marginal estimate (SE)
95% CICO2
marginal estimate (SE)
95% CI
LowerUpperLowerUpper
Logistic regression
 PO: pain0.14 (0.03)0.080.200.15 (0.03)0.090.22
 KSO: ADR0.11 (0.02)0.080.150.15 (0.02)0.110.20
Ordinal logistic regression
 Quality of mucosal views (BBPS)
  Inadequate0.02 (0.004)0.010.020.02 (0.006)0.010.03
  Poor0.16 (0.03)0.110.210.19 (0.03)0.130.25
  Good0.54 (0.02)0.510.580.55 (0.02)0.520.59
  Excellent0.28 (0.04)0.210.360.24 (0.04)0.170.30
Mixed regression
 Sigmoid insertion time4.62 (0.47)3.695.554.08 (0.47)3.165.01
 Overall procedure time8.83 (1.09)6.6910.978.12 (1.09)5.9810.27
  • ADR, adenoma detection rate; BBPS, Boston Bowel Preparation Scale; COEF, coefficient; KSO, key secondary outcome; PO, primary outcome; WAS, water-assisted sigmoidoscopy.