Statin Use Associated With Musculoskeletal Adverse Events
Statin use is associated with an increased risk of musculoskeletal conditions, arthropathies, injuries and pain, according to a new retrospective analysis published June 3 in JAMA Internal Medicine.
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"To our knowledge, this is the first study, using propensity score matching, to show that statin use is associated with an increased likelihood of diagnoses of musculoskeletal conditions, arthropathies and injuries," wrote the investigators. "These findings are concerning because starting statin therapy at a young age for primary prevention of cardiovascular diseases has been widely advocated. Moreover, the numbers needed to be exposed for one additional person to be harmed were 37 to 58 individuals for various outcomes."
The investigators note that there are limitations to the ICD-9 codes used to define musculoskeletal conditions and that, although propensity score-matching eliminated differences in baseline characteristics between the two study cohorts, baseline confounders may have nevertheless persisted. The absence of a time-to-event analysis also may be a limitation. The investigators concluded, "Further investigations, including randomized clinical studies and larger scale prospective studies, particularly in physically active individuals, are necessary to obtain a more complete risk-benefit assessment for statin therapy."
“The concept is interesting,” said Alfred A. Bove, MD, PhD, MACC, past president of the ACC and professor emeritus of medicine at Temple University Hospital in Philadelphia, PA. “There are definitely some patients who note joint pain when on statins, that is separate from the muscle symptoms. The study suggests that the long term effects on the musculoskeletal system might be significant. Confounders however need to be considered. Are statin users more active making them prone to sprains, dislocations, etc.? Propensity matching might not account for all the physical activity of the two groups that were compared. As in many retrospective studies, the data are hypothesis generating, but the truth is best obtained from a prospective randomized trial, which in this case would be very difficult to perform. The benefit of statins on reduced cardiovascular events still offsets the negative effect on the musculoskeletal system,” he adds.
Keywords: Arthralgia, Odds Ratio, Propensity Score, Hydroxymethylglutaryl-CoA Reductase Inhibitors, Cardiovascular Diseases, Motor Activity, Musculoskeletal Pain, Musculoskeletal Diseases, Probability, Risk Assessment, Primary Prevention
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