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12.09.2019 | Ausgabe 1/2020

Journal of General Internal Medicine 1/2020

Impact of a Patient-Centered Behavioral Economics Intervention on Hypertension Control in a Highly Disadvantaged Population: a Randomized Trial

Zeitschrift:
Journal of General Internal Medicine > Ausgabe 1/2020
Autoren:
MD, CM, PhD Martin F. Shapiro, PhD Suzanne B. Shu, PhD Noah J. Goldstein, MD Ronald G. Victor, PhD Craig R. Fox, PhD Chi-Hong Tseng, MA Sitaram Vangala, MD Braden K. Mogler, MD Stewart B. Reed, BA Estivali Villa, MD, PhD José J. Escarce
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s11606-019-05269-z) contains supplementary material, which is available to authorized users.
Dr. Ronald G. Victor is deceased.

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Abstract

Background

Uncontrolled hypertension contributes to disparities in cardiovascular outcomes. Patient intervention strategies informed by behavioral economics and social psychology could improve blood pressure (BP) control in disadvantaged minority populations.

Objective

To assess the impact on BP control of an intervention combining short-term financial incentives with promotion of intrinsic motivation among highly disadvantaged patients.

Design

Randomized controlled trial.

Participants

Two hundred seven adults (98% African American or Latino) aged 18 or older with uncontrolled hypertension attending Federally Qualified Health Centers.

Intervention

Six-month intervention, combining financial incentives for measuring home BP, recording medication use, BP improvement, and achieving target BP values with counseling linking hypertension control efforts to participants’ personal reasons to stay healthy.

Main Measures

Primary outcomes: percentage achieving systolic BP (SBP) < 140 mmHg, percentage achieving diastolic BP (DBP) < 90 mmHg, and changes in SBP and DBP, all after 6 months. Priority secondary outcomes were SBP < 140 mmHg, DBP < 90 mmHg, and BP change at 12 months, 6 months after the intervention ended.

Key Results

After 6 months, rates of achieving target BP values for intervention and control subjects respectively was 57.1% vs. 40.2% for SBP < 140 mmHg (adjusted odds ratio (AOR) 2.53 (1.13–5.70)), 79.8% vs 70.1% for DBP < 90 mmHg (AOR 2.50 (0.84–7.44)), and 53.6% vs 40.2% for achieving both targets (AOR 2.04 (0.92–4.52)). However, at 12 months, the groups did not differ significantly in these 3 measures: 39.5% vs 35.0% for SBP (AOR 1.20 (0.51–2.83)), 68.4% vs 75.0% for DBP (AOR 0.70 (0.24–2.09)), and 35.5% vs 33.8% for both (AOR 1.03 (0.44–2.42)). Change in absolute SBP and DBP did not differ significantly between the groups at 6 or 12 months. Exploratory post hoc analysis revealed intervention benefit only occurred among individuals whose providers intensified their regimens, but not among those with intensification but no intervention.

Conclusions

The intervention achieved short-term improvement in SBP control in a highly disadvantaged population. Despite attempts to enhance intrinsic motivation, the effect was not sustained after incentives were withdrawn. Future research should evaluate combined patient/provider strategies to enhance such interventions and sustain their benefit.

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