Related Experiment Video
Updated: Jul 2, 2026
Differential Effects of Lipid-lowering Drugs in Modulating Morphology of Cholesterol Particles
Published on: November 10, 2017
Impact of adherence to statins on chronic heart failure in primary prevention
Sylvie Perreault1, Alice Dragomir, Lucie Blais
1Faculty of Pharmacy, University of Montreal, Montréal, Québec, Canada. sylvie.perreault@umontreal.ca
Insights
High adherence to statins significantly reduces the risk of developing chronic heart failure (CHF). This finding is crucial for understanding statin therapy
Area of Science:
- Cardiovascular Medicine
- Pharmacology
- Public Health
Background:
- Statins are established for preventing atherosclerotic events.
- Patients with high cardiovascular disease (CVD) risk, like chronic heart failure (CHF), may benefit from statins.
- The role of statins in preventing CHF in low-risk patients remains unclear.
Purpose of the Study:
- To investigate the impact of statin adherence on the incidence of CHF.
- To clarify the preventative role of statins in CHF development among patients with lower CVD risk.
Main Methods:
- A cohort of 111,481 patients (aged 45-85, no prior CVD) newly treated with statins (1999-2004) was analyzed.
- A nested case-control design was employed to study CHF incidence.
- Medication possession ratio measured statin adherence; conditional logistic regression analyzed rate ratios (RR) for CHF.
Main Results:
- High statin adherence was linked to a reduced risk of CHF (RR 0.81; 95% CI 0.71-0.91).
- Factors increasing CHF risk included CVD development, social-aid recipient status, hypertension, diabetes, and higher chronic disease scores.
- The average patient age was 63, with 49% having hypertension and 21% diabetes.
Conclusions:
- Improved adherence to statin therapy is associated with a decreased risk of developing chronic heart failure.
- These findings highlight the importance of medication adherence for cardiovascular health outcomes.
Aims:
Statins are effective in the prevention of an atherosclerotic event, e.g. coronary artery disease and cerebrovascular disease. Patients at high risk of cardiovascular disease (CVD), such as chronic heart failure (CHF), might benefit from the effects of statin therapy. However, one question that has not yet been answered and that may clarify the role of statins in CHF is whether statins prevent the development of CHF in patients with a low risk of CVD. Our aim was to evaluate the impact of adherence to statins on the incidence of CHF.
Methods:
A cohort of 111,481 patients was reconstructed using the Régie de l'Assurance Maladie du Québec databases. Patients were eligible if they were between 45 and 85 years old, without CVD, and newly treated with statins between 1999 and 2004. A nested case-control design was used to study CHF. Every case of CHF was matched for age and duration of follow-up in up to 15 randomly selected controls. The adherence level was measured by calculating the medication possession ratio. Rate ratios (RR) of CHF were estimated by conditional logistic regression adjusting for several covariables.
Results:
The mean patient age was 63 years, 49% had hypertension, 21% had diabetes and 41% were male. A high level of adherence to statins was associated with a reduction of CHF (RR 0.81; 0.71, 0.91). The risks associated with CHF were the development of CVD during follow-up, being a social-aid recipient, and suffering from hypertension, diabetes mellitus, or having a higher chronic disease score.
Conclusion:
Our study indicates that better adherence to statins is associated with a reduced risk of CHF.
Related Concept Videos
01:26Atherosclerosis III: Management
01:20Lipid-Lowering Drugs: Statins and Miscellaneous Agents
01:22Heart Failure Drugs: β-Blockers
01:30Heart Failure V: Medical Management
01:26Coronary Artery Disease IV: Preventive Measures
01:26Heart Failure Drugs: Inhibitors of Renin-Angiotensin System