Effect of Financial Incentives to Physicians, Patients, or Both on Lipid Levels: A Randomized Clinical Trial

Area of Science:

• Cardiovascular Disease Prevention
• Health Economics
• Primary Care Research

Background:

• Financial incentives are increasingly utilized in healthcare, yet their efficacy in improving patient outcomes remains incompletely understood.
• This study addresses the gap in knowledge regarding the effectiveness of different incentive models in managing cholesterol levels.

Purpose of the Study:

• To compare the effectiveness of physician financial incentives, patient financial incentives, and shared physician-patient financial incentives against a control group in reducing low-density lipoprotein cholesterol (LDL-C) levels.
• To evaluate these interventions in patients with high cardiovascular risk.

Main Methods:

• A 12-month, four-group, multicenter, cluster randomized clinical trial involving 3 primary care practices.
• 340 primary care physicians and 1503 high-risk patients were enrolled.
• Interventions included physician-only incentives, patient-only incentives (lottery-based adherence), shared incentives, and a control group. The primary outcome was the change in LDL-C level at 12 months.

Main Results:

• The shared physician-patient incentive group showed the greatest mean reduction in LDL-C (33.6 mg/dL), followed by physician incentives (27.9 mg/dL) and patient incentives (25.1 mg/dL).
• The control group had a mean LDL-C reduction of 25.1 mg/dL.
• Only the shared incentive group demonstrated a statistically significant difference in LDL-C reduction compared to the control group (8.5 mg/dL reduction, P=.002).

Conclusions:

• Shared financial incentives between physicians and patients were more effective than individual incentives or no incentives in significantly reducing LDL-C levels in primary care settings.
• While statistically significant, the observed reduction in LDL-C was modest, necessitating further research into the cost-effectiveness and long-term value of this intervention model.