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JAMA. 2015 Nov 10;314(18):1926-35. doi: 10.1001/jama.2015.14850.

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

Author information

  • 1University of Pennsylvania, Philadelphia2Department of Veterans Affairs, Philadelphia, Pennsylvania.
  • 2University of Pennsylvania, Philadelphia.
  • 3Sutter Health System, Sacramento, California.
  • 4Partners Healthcare System, Boston, Massachusetts5Harvard Medical School, Boston, Massachusetts.
  • 5Geisinger Health System, Danville, Pennsylvania.
  • 6Temple University School of Medicine, Philadelphia, Pennsylvania.
  • 7Harvard T. H. Chan School of Public Health, Boston, Massachusetts.

Abstract

IMPORTANCE:

Financial incentives to physicians or patients are increasingly used, but their effectiveness is not well established.

OBJECTIVE:

To determine whether physician financial incentives, patient incentives, or shared physician and patient incentives are more effective than control in reducing levels of low-density lipoprotein cholesterol (LDL-C) among patients with high cardiovascular risk.

DESIGN, SETTING, AND PARTICIPANTS:

Four-group, multicenter, cluster randomized clinical trial with a 12-month intervention conducted from 2011 to 2014 in 3 primary care practices in the northeastern United States. Three hundred forty eligible primary care physicians (PCPs) were enrolled from a pool of 421. Of 25,627 potentially eligible patients of those PCPs, 1503 enrolled. Patients aged 18 to 80 years were eligible if they had a 10-year Framingham Risk Score (FRS) of 20% or greater, had coronary artery disease equivalents with LDL-C levels of 120 mg/dL or greater, or had an FRS of 10% to 20% with LDL-C levels of 140 mg/dL or greater. Investigators were blinded to study group, but participants were not.

INTERVENTIONS:

Primary care physicians were randomly assigned to control, physician incentives, patient incentives, or shared physician-patient incentives. Physicians in the physician incentives group were eligible to receive up to $1024 per enrolled patient meeting LDL-C goals. Patients in the patient incentives group were eligible for the same amount, distributed through daily lotteries tied to medication adherence. Physicians and patients in the shared incentives group shared these incentives. Physicians and patients in the control group received no incentives tied to outcomes, but all patient participants received up to $355 each for trial participation.

MAIN OUTCOMES AND MEASURES:

Change in LDL-C level at 12 months.

RESULTS:

Patients in the shared physician-patient incentives group achieved a mean reduction in LDL-C of 33.6 mg/dL (95% CI, 30.1-37.1; baseline, 160.1 mg/dL; 12 months, 126.4 mg/dL); those in physician incentives achieved a mean reduction of 27.9 mg/dL (95% CI, 24.9-31.0; baseline, 159.9 mg/dL; 12 months, 132.0 mg/dL); those in patient incentives achieved a mean reduction of 25.1 mg/dL (95% CI, 21.6-28.5; baseline, 160.6 mg/dL; 12 months, 135.5 mg/dL); and those in the control group achieved a mean reduction of 25.1 mg/dL (95% CI, 21.7-28.5; baseline, 161.5 mg/dL; 12 months, 136.4 mg/dL; P < .001 for comparison of all 4 groups). Only patients in the shared physician-patient incentives group achieved reductions in LDL-C levels statistically different from those in the control group (8.5 mg/dL; 95% CI, 3.8-13.3; P = .002).

CONCLUSIONS AND RELEVANCE:

In primary care practices, shared financial incentives for physicians and patients, but not incentives to physicians or patients alone, resulted in a statistically significant difference in reduction of LDL-C levels at 12 months. This reduction was modest, however, and further information is needed to understand whether this approach represents good value.

TRIAL REGISTRATION:

clinicaltrials.gov Identifier: NCT01346189.

PMID:
26547464
DOI:
10.1001/jama.2015.14850
[PubMed - indexed for MEDLINE]
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