Predictors of inadequate bowel preparation for colonoscopy in patients receiving 1 liter of polyethylene glycol plus ascorbic acid: development and validation of a predictive score

Predictors of inadequate bowel preparation for colonoscopy in patients receiving 1 liter of polyethylene glycol plus ascorbic acid: development and validation of a predictive score - Predictors of inadequate bowel preparation for colonoscopy in patients receiving 1 liter of polyethylene glycol plus ascorbic acid: development and validation of a predictive score

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000037260

Enrollment

1200

Registered

2019-07-03

Start date

2019-03-08

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

outpatients who underwent scheduled colonoscopy

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: outpatients who underwent colonoscopy

Exclusion criteria

Exclusion criteria: 1)failed complete intake of bowel preparation agent 2)mechanical bowel obstruction 3)failed cecal intubation 4)current pregnancy/lactating 5)active inflammatory bowel disease 6)contraindication to bowel preparation (congestive heart failure, renal insufficiency, liver failure, a life-threatening condition) 7)refusal to provide consent

Design outcomes

Primary

Measure	Time frame
Inadequate bowel preparation defined as Boston bowel preparation scale score <6	—

Countries

Japan

Contacts

Public ContactAkira Higashimori

Minami Osaka Hospital Gastroenterology

higamo@med.osaka-cu.ac.jp+81666850221

Outcome results