Impact of side effect management, patient outcomes, and health-care costs in atorvastatin and rosuvastatin therapy: An observational study

Background: Statins are widely prescribed for the management of hyperlipidemia and the prevention of cardiovascular diseases. Atorvastatin and rosuvastatin are among the most commonly used statins, with varying impacts on lipid profiles, side effect profiles, patient adherence, and health-care costs. Understanding these differences within specific populations can inform more tailored and cost-effective treatment strategies. Aims and Objectives: This study aimed to evaluate the differences in side effect management, patient outcomes, and health-care costs between atorvastatin and rosuvastatin therapies in a cohort from Coimbatore, Tamil Nadu, India. Materials and Methods: An observational study was conducted with 100 patients at the Karpagam Faculty of Medical Sciences and Research, evenly split between atorvastatin (n=50) and rosuvastatin (n=50) groups. Data on demographic characteristics, side effects, low-density lipoprotein (LDL) cholesterol reduction, medication adherence, and health-care costs were collected and analyzed. Results: The cohort had an average age of 62 years, with a higher prevalence of males (57%). Socioeconomic analysis showed 30% from low-income, 50% from middle-income, and 20% from high-income backgrounds. Side effects were more common in the atorvastatin group (35%) compared to the rosuvastatin group (28%), with muscle pain and gastrointestinal issues being predominant. Rosuvastatin treatment resulted in higher adherence rates (90%) and more significant LDL cholesterol reduction but incurred higher annual health-care costs (INR 28,000) versus atorvastatin (INR 25,000) (P=0.04). Conclusion: Both statins effectively reduced LDL cholesterol; however, rosuvastatin demonstrated higher patient adherence but at an increased cost. These findings underscore the need for individualized statin therapy that considers both clinical outcomes and economic constraints, particularly in settings with limited health-care resources.