University of Oklahoma Health Sciences Center

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Author/s:

Leutner, M., Matzhold, C., Bellach, L., Deischinger, C., Harreiter, J., Thurner, S., Klimek, P., Kautzky-Willer, A.

Date Added:

October 17, 2019

Journal/Publication:

Annals of Rheumatic Diseases

Publication Date:

September 16, 2019

URL:

Diagnosis of osteoporosis in statin-treated patients is dose-dependent

Type:

Clinical Research Results

DOI (1):

10.1136/annrheumdis-2019-215714.

Keywords

dose-dependency

osteoporosis

statin

MeSH

Pravastatin

acamprosate

Hydroxymethylglutaryl-CoA Reductase Inhibitors

Gonadal Steroid Hormones

Computers

Hydroxymethylglutaryl CoA Reductases

osteoporosis

RPR Commentary

It was bound to happen now that most statins are generic, the adverse effects are going to be revealed. Apparently high-dose statins increase the likelihood of a subsequent osteoporosis diagnosis. Even though this is a cohort study, not an RCT, the dose response relationship makes the results more credible. James W. Mold, MD, MPH

Abstract

OBJECTIVE:

Whether HMG-CoA-reductase inhibition, the main mechanism of statins, plays a role in the pathogenesis of osteoporosis, is not entirely known so far. Consequently, this study was set out to investigate the relationship of different kinds and dosages of statins with osteoporosis, hypothesising that the inhibition of the synthesis of cholesterol could influence sex-hormones and therefore the diagnosis of osteoporosis.

METHODS:

Medical claims data of all Austrians from 2006 to 2007 was used to identify all patients treated with statins to compute their daily defined dose averages of six different types of statins. We applied multiple logistic regression to analyse the dose-dependent risks of being diagnosed with osteoporosis for each statin individually.

RESULTS:

In the general study population, statin treatment was associated with an overrepresentation of diagnosed osteoporosis compared with controls (OR: 3.62, 95% CI 3.55 to 3.69, p<0.01). There was a highly non-trivial dependence of statin dosage with the ORs of osteoporosis. Osteoporosis was underrepresented in low-dose statin treatment (0-10 mg per day), including lovastatin (OR: 0.39, CI 0.18 to 0.84, p<0.05), pravastatin (OR: 0.68, 95% CI 0.52 to 0.89, p<0.01), simvastatin (OR: 0.70, 95% CI 0.56 to 0.86, p<0.01) and rosuvastatin (OR: 0.69, 95% CI 0.55 to 0.87, p<0.01). However, the exceeding of the 40 mg threshold for simvastatin (OR: 1.64, 95% CI 1.31 to 2.07, p<0.01), and the exceeding of a 20 mg threshold for atorvastatin (OR: 1.78, 95% CI 1.41 to 2.23, p<0.01) and for rosuvastatin (OR: 2.04, 95% CI 1.31 to 3.18, p<0.01) was related to an overrepresentation of osteoporosis.

CONCLUSION:

Our results show that the diagnosis of osteoporosis in statin-treated patients is dose-dependent. Thus, osteoporosis is underrepresented in low-dose and overrepresented in high-dose statin treatment, demonstrating the importance of future studies' taking dose-dependency into account when investigating the relationship between statins and osteoporosis.

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