Predictive Validity of a Medication Adherence Measure in an Outpatient Setting

Predictive Validity of a Medication Adherence Measure in an Outpatient Setting

VOL. 10 NO. 5 MAY 2008 | Donald E. Morisky, ScD, MSPH;1 Alfonso Ang, PhD;2 Marie Krousel-Wood, MD, MSPH;3,4 Harry J. Ward, MD5
This study evaluates the psychometric properties and concurrent and predictive validity of an 8-item structured, self-reported medication adherence measure in patients with hypertension. The study included 1367 patients, primarily low-income and minority, with a mean age of 52.5 years. The medication adherence scale was reliable (α = .83) and significantly associated with blood pressure control (P < .05). Using a cutpoint of <6, the sensitivity of the measure to identify poor blood pressure control was 93%, and specificity was 53%. The scale demonstrated good concurrent and predictive validity, making it a useful tool for screening and monitoring medication adherence in outpatient settings. Factors such as knowledge, social support, satisfaction with care, and complexity of the medical regimen were also assessed and found to be significant predictors of adherence. The study highlights the importance of patient education, effective communication, and tailored interventions to improve adherence and blood pressure control.This study evaluates the psychometric properties and concurrent and predictive validity of an 8-item structured, self-reported medication adherence measure in patients with hypertension. The study included 1367 patients, primarily low-income and minority, with a mean age of 52.5 years. The medication adherence scale was reliable (α = .83) and significantly associated with blood pressure control (P < .05). Using a cutpoint of <6, the sensitivity of the measure to identify poor blood pressure control was 93%, and specificity was 53%. The scale demonstrated good concurrent and predictive validity, making it a useful tool for screening and monitoring medication adherence in outpatient settings. Factors such as knowledge, social support, satisfaction with care, and complexity of the medical regimen were also assessed and found to be significant predictors of adherence. The study highlights the importance of patient education, effective communication, and tailored interventions to improve adherence and blood pressure control.
Reach us at info@study.space
Understanding Predictive Validity of a Medication Adherence Measure in an Outpatient Setting