Sex disparities in post-acute myocardial infarction pharmacologic treatment initiation and adherence: problem for young women

Published: October 13, 2015
Category: Bibliography > Papers
Authors: Ball L, Humphries KH, Khan N, Morgan SG, Smolina K
Countries: Canada
Language: null
Types: Care Management
Settings: Academic, Hospital

Circ Cardiovasc Qual Outcomes 8:586-592.

University of British Columbia, Vancouver, BC, Canada

BACKGROUND: The prevalence of the use of secondary prevention cardiovascular medications is lower among women than men, but it is unclear if this is a result of lower treatment initiation among women or lower treatment adherence. We aimed to map the treatment pathway for survivors of acute myocardial infarction (AMI) by sex and age.

METHODS AND RESULTS: This retrospective population-based cohort study used linked administrative data sets in British Columbia (2004-2011), which include health care, prescription drugs, sociodemographic, and mortality information. The study cohort included all individuals admitted to hospital for AMI in 2007-2009 and survived for 1 year after hospital discharge. Patients were evaluated for whether they initiated and then subsequently filled prescriptions angiotensin-converting enzyme inhibitors, β-blockers, and statins. More than two thirds of AMI survivors initiated treatment on all appropriate medications, given their contraindications, within 2 months of discharge. Younger men were significantly more likely than younger women to initiate appropriate treatment (adjusted odds ratio, 1.38; 95% confidence interval, 1.10-1.75). By the end of 1 year after discharge, only one third of all AMI survivors filled all appropriate prescriptions for at least 80% of the year. There was no significant difference in adherence to medication therapy between women and men.

CONCLUSIONS: The majority of AMI survivors either discontinue treatment or do not refill their prescriptions consistently. Women 55 years are significantly less likely to be on optimal therapy by the end of 1 year after discharge, which is drivn by a sex disparity in treatment initiation and not treatment adherence.

PMID: 26462876

Canada,Medications,Gender,Prescription Drug Use and Expenditures,Cardiovascular Patients,Adult,Age Factors,Aged, 80 and over,Cardiovascular Agents/adverse effects,Chi-Square Distribution,Gender,Health Knowledge, Attitudes,Practice,Logistic Models,Middle Aged,Myocardial Infarction/diagnosis,Myocardial Infarction/mortality,Odds Ratio,Retrospective Studies,Risk Factors,Sex Factors,Time Factors,Treatment Outcome,Young Adult

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