Obesity Modifies the Association of Race/Ethnicity with Medication Adherence in the CARDIA Study

Maribel Salas1, Catarina I Kiefe, Pamela J Schreiner

  • 11 Division of Preventive Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA 2 Division of Epidemiology & Community Health, University of Minnesota, Minneapolis, Minnesota, USA.

The Patient
|January 26, 2012
PubMed

Insights

Medication adherence varies by race and weight. Whites with normal weight adhered more than African Americans, but this difference disappeared in heavier individuals. This highlights disparities in managing chronic diseases.

Area of Science:

  • Public Health
  • Health Disparities
  • Clinical Research

Background:

  • Medication adherence is crucial for managing chronic conditions.
  • Understanding how race/ethnicity and weight influence adherence is vital for effective treatment.
  • The CARDIA (Coronary Artery Risk Development in Young Adults) study provides a valuable dataset for examining these associations.

Purpose of the Study:

  • To investigate the relationship between race/ethnicity and medication adherence.
  • To determine if weight category (normal, overweight, obese) modifies this association.
  • To identify potential disparities in medication adherence among diverse populations.

Main Methods:

  • Analysis of 1355 participants from the CARDIA study taking prescription medications.
  • Assessment of medication adherence using the four-item Morisky medication adherence scale.
  • Stratification of analyses by weight category and race/ethnicity.

Main Results:

  • Overall, White participants showed higher maximum medication adherence than African American participants (59% vs. 41%).
  • This adherence difference was significant only in the normal weight category (54% of Whites vs. 35% of African Americans).
  • After adjustments, normal weight White individuals had nearly double the odds of maximum adherence compared to normal weight African Americans (OR=1.98).

Conclusions:

  • Weight status significantly modifies the association between race/ethnicity and medication adherence.
  • High non-adherence rates in African Americans and overweight/obese Whites pose challenges for managing obesity-related diseases.
  • Targeted interventions considering both race and weight are needed to improve medication adherence and health outcomes.
Abstract

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