Statin Prescription Rates, Adherence, and Associated Clinical Outcomes Among Women with PAD and ICVD.
Cardiovascular drugs and therapy / sponsored by the International Society of Cardiovascular Pharmacotherapy
PURPOSE: This study sought to investigate gender-based disparities in statin prescription rates and adherence among patients with peripheral arterial disease (PAD) and ischemic cerebrovascular disease (ICVD).
METHODS: We identified patients with PAD or ICVD seeking primary care between 2013 and 2014 in the VA healthcare system. We assessed any statin use, high-intensity statin (HIS) use, and statin adherence among women with PAD or ICVD compared with men. We also compared proportion of days covered (PDC) as a measure of statin adherence; PDC ≥ 0.8 deemed a patient statin adherent. Association between statin use (or adherence) and odds of death or myocardial infarction (MI) at 12-month follow-up was also ascertained.
RESULTS: Our analyses included 192,219 males and 3188 females with PAD and 331,352 males and 10,490 females with ICVD. Women with PAD had lower prescription rates of any statin (68.5% vs. 78.7%, OR 0.68, 95% confidence interval (CI) 0.62-0.75), HIS (21.1% vs. 23.7%, OR 0.88, 95% CI 0.79-0.97), and lower statin adherence (PDC ≥ 0.8: 34.6% vs. 45.5%, OR 0.75, 95% CI 0.69-0.82) compared with men. Similar disparities were seen in ICVD patients. Among female patients with PAD or ICVD, statin adherence was associated with lower odds of MI (OR 0.76, 95% CI 0.59-0.98), while use of any statin (OR 0.71, 95% CI 0.56-0.91) and HIS (OR 0.68, 95% CI 0.48-0.97) was associated with lower odds of death at 12 months.
CONCLUSIONS: Women with PAD or ICVD had lower odds of receiving any statins, HIS, or being statin adherent. Targeted clinician- and patient-level interventions are needed to study and address these disparities among patients with PAD and ICVD.
Women & Children
Mahtta, Dhruv; Ahmed, Sarah T; Ramsey, David J; Akeroyd, Julia M; Lee, Michelle T; Rodriguez, Fatima; Michos, Erin D; Itchhaporia, Dipti; Nasir, Khurram; Alam, Mahboob; Jneid, Hani; Ballantyne, Christie M; Petersen, Laura A; and Virani, Salim S, "Statin Prescription Rates, Adherence, and Associated Clinical Outcomes Among Women with PAD and ICVD." (2020). Articles, Abstracts, and Reports. 3518.