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Clinical recommendations of Cochrane reviews in pediatric gastroenterology: systematic analysis
Yvonne Goda1, Harald Sauer, Dominik Schöndorf
1Medical School, University of Saarland, Homburg, Germany.
Insights
Cochrane reviews in pediatric gastroenterology often lack clear recommendations due to inconclusive evidence. More high-quality research is needed to improve clinical decision-making for pediatric patients.
Area of Science:
- Pediatric Gastroenterology
- Evidence-Based Medicine
- Systematic Reviews
Background:
- Cochrane reviews are vital for disseminating evidence in pediatric gastroenterology.
- These reviews inform clinical practice and address specific patient care questions.
Purpose of the Study:
- To analyze the conclusions and recommendations of Cochrane reviews in pediatric gastroenterology published between 1993 and 2012.
- To identify trends in evidence conclusiveness and reasons for inconclusive findings.
Main Methods:
- Systematic literature review of Cochrane reviews in pediatric gastroenterology (1993-2012).
- Categorization of reviews by intervention type (pharmacological, prevention, nutrition).
- Analysis of review conclusions regarding intervention benefit, harm, and evidence level.
Main Results:
- 86 reviews were analyzed; pharmacological interventions were most common.
- Only 33/86 reviews provided definite recommendations (19 positive, 14 negative).
- Inconclusive or limited evidence reviews increased over time (9% to 24%), with heterogeneity and small sample sizes being key reasons.
Conclusions:
- A significant proportion of pediatric gastroenterology reviews lack clear recommendations.
- High-quality research is essential to increase the conclusiveness of systematic reviews.
- Funding and research agencies play a critical role in directing future research priorities.
Background:
Systematic and up-to-date Cochrane reviews in pediatrics in general and in pediatric gastroenterology in particular are important tools in disseminating the best available evidence to the medical community, thus providing the physician at the bedside with invaluable information and recommendations with regard to specific clinical questions.
Methods:
A systematic literature review was conducted, including all Cochrane reviews published by the Cochrane Review Group in the field of pediatric gastroenterology between 1993 and 2012, with regard to the percentage of reviews that concluded that a certain intervention provided a benefit, percentage of reviews that concluded that a certain intervention should not be performed, and percentage of studies that concluded that the current level of evidence was inconclusive.
Results:
In total, 86 reviews in the field of pediatric gastroenterology were included. The majority of reviews assessed pharmacological interventions (46/86); other important fields included prevention (15/86) and nutrition (9/86). A total of 33/86 reviews issued definite recommendations (positive, 19/86; negative, 14/86). The remaining 53/86 reviews were either inconclusive (24/86) or only of limited conclusiveness (29/86). The percentage of inconclusive reviews increased from 9% (1998-2002) to 19% (2003-2007; P < 0.05) to finally 24% (2008-2012) (P < 0.05). The three most common reasons for the need for further research were heterogeneity of studies (26/86), small number of patients (18/86), and insufficient data (16/86).
Conclusions:
Further high-quality research is necessary to increase the proportion of reviews with clear recommendations. Funding and research agencies are key to selecting the most appropriate research programs.
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