Credibility of a meta-analysis: evidence-based practice concerning soy intake and breast cancer risk in premenopausal women.

Purpose: To report the findings from a critical appraisal concerning the credibility of a meta-analysis (M-A) about the role of dietary soy intake in reducing breast cancer risk. The use of an evidence-based, advanced nursing practice framework was used to appraise the M-A.

Approach: The clinical question was developed from a problem that could be encountered in clinical practice.