Medication Adherence in COPD--A Self-Regulation Study

BACKGROUND:

In 1990, the available data on medication adherence among chronic obstructive pulmonary disease (COPD) patients consistently indicated that adherence was a significant problem. This was a particularly distressing finding, considering that pharmacological therapy was considered the backbone of COPD management in settings where comprehensive rehabilitation services were limited. Despite the importance of this issue and a large data base on how to enhance medication adherence among medical populations, there had been no empirical investigations evaluating the implementation of these strategies with COPD patients.

DESIGN NARRATIVE:

The prospective, controlled study randomized 230 emphysema and chronic bronchitis patients from an urban university medical center into either a "usual care", control group or into a self-management skills training program for improving adherence. The training program was based on self-management procedures for enhancing adherence which had proven efficacious with diverse populations.

Self-reported and objective measures of adherence were examined during the two month baseline period and the one year follow-up in the controlled study. A range of possible covariates including demographics, patient characteristics, treatment, and therapeutic outcome variables were also collected during the baseline phase and at the 6-month and 12-month follow-up visits in the controlled study to evaluate their relationship to the observed adherence levels.