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Impact of access restrictions on varenicline utilization
Aaron Galaznik1, Katherine Cappell, Leslie Montejano
1Pfizer Inc, 235 East 42nd Street, NY 10017, USA.
Aim:
To assess the impact of access restrictions on varenicline utilization.
Methods:
Employer-sponsored health plans contributing to the MarketScan Commercial Claims and Encounters Database were categorized according to 2009 varenicline access restrictions: no coverage; prior authorization; smoking cessation program requirement; no restrictions. The cohort comprised all adults continuously enrolled in plans during 2009. Each restriction cohort was compared with the no restrictions cohort using descriptive analyses. Data were assessed using logistic regression; demographic and clinical characteristics were covariates.
Results:
In this study (no coverage, n = 454,419; prior authorization, n = 171,530; smoking cessation program, n = 108,181; no restrictions, n = 607,389), compared with the no restrictions cohort, the odds of treatment were 71% lower (odds ratio: 0.29; 95% CI: 0.26, 0.31) in the smoking cessation program cohort (p < 0.001) and 80% lower (odds ratio: 0.20; 95% CI: 0.19, 0.22) in the prior authorization cohort (p < 0.001).
Conclusions:
Access restrictions were associated with significantly lower odds for varenicline utilization.
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