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Are abdominal x-rays a reliable way to assess for constipation?
Susan Moylan1, Jennifer Armstrong, Dawn Diaz-Saldano
1Division of Urology, Children's Memorial Hospital, Chicago, Illinois 60614, USA.
Existing X-ray scoring tools for pediatric constipation lack reliability. Further research is needed to develop a dependable method for assessing constipation in children using abdominal X-rays.
Area of Science:
- Pediatric gastroenterology
- Radiology
- Clinical assessment tools
Background:
- Constipation is a common pediatric issue.
- Abdominal X-rays are frequently used in clinical practice for evaluating lower urinary tract symptoms.
- Validated tools for assessing constipation in children via X-ray are currently lacking.
Purpose of the Study:
- To assess the reliability of three existing X-ray scoring tools (Barr, Leech, Blethyn) for evaluating constipation in children.
- To determine if these tools provide consistent results among multiple practitioners.
Main Methods:
- Retrospective analysis of abdominal X-rays from 80 children (ages 4-12).
- Independent assessment of X-rays by practitioners using Barr, Leech, and Blethyn scoring tools.
- Reliability analysis using weighted kappa (κ) scores and intraclass correlation coefficients (ICC).
Main Results:
- Weighted κ scores ranged from 0.0454 to 0.4809, indicating marginal to good reproducibility.
- ICC values ranged from 0.02577 to 0.3313, indicating poor to good reliability.
- A trend towards good interrater reliability was observed with the Barr and Blethyn tools among experienced urology practitioners, but not with the Leech tool or less experienced raters.
Conclusions:
- Currently available X-ray scoring tools demonstrate inadequate reliability for assessing pediatric constipation across multiple examiners.
- Development of a new, more reliable X-ray assessment tool for pediatric constipation is necessary.
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