Subscribe to RSS
FACTORS ASSOCIATED WITH ADEQUATE BOWEL PREPARATION: OBSERVATIONS FROM THE EUROPEAN COLONOSCOPY QUALITY INVESTIGATION (ECQI) QUESTIONNAIRE
18 March 2019 (online)
To investigate the factors associated with adequate bowel preparation using questionnaire responses from across Europe.
The development of the procedure questionnaire, by the European Colonoscopy Quality Investigation (ECQI) Group, has been previously described in posters presented at UEGW, 2015 and 2016. Data collection is an ongoing process. We analysed data collected between 2/6/16 and 30/4/18.
A stepwise multivariable logistic regression analysis was performed to investigate which factors are associated with achievement of adequate bowel preparation, defined as a Boston Bowel Preparation Scale (BBPS) score ≥6. Analysis was performed on the following variables: age over or under 50; gender; body mass index (BMI) categories; inpatient/outpatient status; reason for procedure; use of bowel preparation; whether the patient followed instructions; proportion of bowel preparation consumed; total volume of fluid consumed; time period since last dose of bowel preparation; dosing regimen; time of day colonoscopy was performed.
Data were collected on 6455 procedures, of which whether bowel preparation was adequate (BBPS≥6) or not could be determined in 6236. Of these, there were 2884 procedures where the results of all selected variables were known: adequate bowel preparation was achieved in 86.96% of these procedures.
The first five variables most associated with adequate bowel clearance were, in order:
Patient following instructions (89.1% vs. 54.3%, p < 0.0001).
Split-dosing or same-day regimen (89.5% split-dosing and 90.8% same-day vs. 77.9% evening, p = 0.004).
Outpatient status (88.4% vs. 77.3% inpatient, p < 0.0001).
Age < 50 years (93.3% vs. 85.3% > 50 years, p < 0.0001).
Lower time period between procedure and last intake of bowel preparation (mean 6.1 hours vs. 8.0 hours in those with inadequate bowel preparation, p = 0.0030).
Patients following instructions is the most important factor associated with achieving adequate bowel clearance followed by using a split-dosing or same-day regimen.