Low Credibility of Subgroup Claims in Low Back Pain Trials (ptpodcast.com)

• Systematic review of 39 RCTs with subgroup claims in low back pain.
• Only 4% of claims met high credibility criteria.
• Flaws: lack of pre-specification, insufficient power, no interaction tests.
• Recommendation: use Sun criteria to assess subgroup credibility.

"A systematic review by Saragiotto et al. (2016) found that subgroup claims in low back pain trials are largely not credible due to methodological flaws such as lack of pre-specification, insufficient power, and failure to use interaction tests. Clinicians should be cautious when interpreting subgroup findings."