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Related Experiment Videos

Guidelines in context of evidence.

Eeva Ketola¹, Minna Kaila, Mari Honkanen

¹Finnish Medical Society Duodecim, Helsinki, Finland. eeva.ketola@duodecim.fi

Quality & Safety in Health Care

|August 19, 2007

Summary

High-quality evidence (Level A) supports only one-fifth of statements in Finnish Current Care guidelines. Most evidence summaries focus on diagnosis and treatment, with lower-quality evidence (Levels C and D) also prevalent in these areas.

Area of Science:

Medical research
Clinical practice guidelines
Evidence-based medicine

Background:

Clinical practice guidelines (CPGs) rely on evidence graded by reliability and quality.
Evaluating the evidence underpinning CPGs is crucial for ensuring reliable medical recommendations.

Purpose of the Study:

To assess the quality of research evidence within Finnish national evidence-based Current Care guidelines.
To determine the distribution of evidence levels (A-D) in the evidence summaries of these guidelines.

Main Methods:

A descriptive assessment of 64 electronic, web-based Finnish Current Care guidelines.
Analysis of 2419 evidence summaries to determine the proportion of each evidence level (A-D).

Main Results:

Related Experiment Videos

Only 22.0% of evidence summaries were Level A (highest quality).
Level B evidence comprised 36.8%, Level C 33.4%, and Level D (lowest quality) 7.8%.
Diagnosis and treatment sections predominantly featured lower-quality evidence (81% of Level C/D summaries).

Conclusions:

A significant portion of guideline statements lack high-quality (Level A) supporting evidence.
The prevalence of lower-quality evidence in diagnosis and treatment may be underestimated.
Guideline developers may favor consensus on recommendations supported by higher-quality evidence (Levels A and B).