The Study
The effect of statins on muscle symptoms in primary care: the StatinWISE series of 200 N-of-1 RCTs.
This study is like doing 200 mini-experiments where each person tries the statin and a fake pill (placebo) at different times without knowing which is which. It helps us see if the statin actually causes muscle aches in people who think it does. The results showed no real difference, so it's likely the aches aren't caused by the statin in most cases.
Analysis score
Maximum 90 for a randomized controlled trial.
Where the score came from
Some people think statins cause muscle pain, so they stop taking them. This study tested if the pain comes from the pill itself or from expecting side effects.
Where does this study sit?
Systematic Reviews & Meta-analyses
Max 100Randomized Trials
Max 90Cohort Studies
Max 72Case-Control
Max 58Cross-Sectional
Max 44Case Reports & Series
Max 30Expert Opinion
Max 552 / 100
Quality score
Participants are randomly assigned to treatment or control groups, minimizing bias. Considered the gold standard for testing whether an intervention causes an effect.
Key takeaways
Summary
Based on the study abstract and findings.
- 1The result means most people who think statins cause muscle pain may actually be experiencing it due to expectation, not the drug.
- 2200 people took either a statin or a fake pill for several months.
- 3On average, the statin did not increase muscle pain scores (difference: -0.11, range: -0.36 to 0.14, p = 0.398).
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Health technology assessment
Year
2021
Authors
E. Herrett, Elizabeth Williamson, Kieran Brack, Alexander Perkins, Andrew Thayne, H. Shakur-Still, I. Roberts, D. Prowse, D. Beaumont, Z. Jamal, B. Goldacre, T. V. van Staa, T. MacDonald, J. Armitage, M. Moore, M. Hoffman, L. Smeeth
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.