Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Am J Manag Care. 2009 Jan;15(1):59-66.

New medication adherence scale versus pharmacy fill rates in seniors with hypertension.

Author information

  • 1Center for Health Research, Ochsner Clinic Foundation, 1514 Jefferson Hwy, New Orleans, LA 70121, USA. mawood@ochsner.org

Abstract

OBJECTIVE:

To evaluate the association and concordance of the new 8-item self-report Morisky Medication Adherence Scale (MMAS) with pharmacy fill data in a sample of community-dwelling seniors with hypertension.

STUDY DESIGN:

Cross-sectional study.

METHODS:

Pharmacy records for antihypertensive medications were abstracted for 87 managed care adult patients with hypertension 65 years and older who completed a survey that included the MMAS. Continuous single-interval medication availability (CSA), medication possession ratio (MPR), and continuous multiple-interval medication gaps (CMG) were calculated using pharmacy data. The MMAS adherence was categorized as high, medium, and low (MMAS scores of 8, 6 to <8, and <6, respectively); pharmacy fill nonpersistence was defined as less than 0.8 for CSA and MPR and as greater than 0.2 for CMG.

RESULTS:

Overall, 58%, 33%, and 9% of participants had high, medium, and low medication adherence, respectively, by the MMAS. After adjustment for demographics and in comparison to high adherers on the MMAS, patients with low MMAS adherence were 6.89 (95% confidence interval [CI], 2.48-19.10) times more likely to have nonpersistent pharmacy fill adherence by CSA and were 5.22 (95% CI, 1.88-14.50) times more likely to have nonpersistent pharmacy fill adherence by MPR. Concordance between the MMAS and CSA, MPR, and CMG was 75% or higher.

CONCLUSIONS:

The MMAS is significantly associated with antihypertensive drug pharmacy refill adherence. Although further validation of the MMAS is needed, it may be useful in identifying low medication adherers in clinical settings.

PMID:
19146365
[PubMed - indexed for MEDLINE]
PMCID:
PMC2728593
Free PMC Article

Images from this publication.See all images (1)Free text

Figure 1
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Managed Care & Healthcare Communications, LLC Icon for PubMed Central
    Loading ...
    Write to the Help Desk