Abstract
The risk of obstructive sleep apnea (OSA) in patients with resistant hypertension (RH) has not been well-quantified. We sought to evaluate the risk of OSA in patients with RH compared to those with treated but non-resistant hypertension (non-RH) using a time-dependent-exposure analysis. We conducted a retrospective cohort study of patients with treated hypertension (hypertension diagnosis + ≥2 antihypertensive drug claims within 1 year) using the IBM MarketScan® commercial claims database from January 2008 to December 2019. We excluded patients without 12 months of continuous enrollment before the second antihypertensive fill date (index date of cohort entry) and those having the outcome (OSA) in the 12-month pre-index period. We employed Cox proportional hazard regression with OSA as the dependent variable, and time-dependent exposure (non-RH vs. RH) and baseline covariates as independent variables. Of the 1,375,055 patients with treated hypertension, 13,584 patients were categorized as exposed to RH. In the multivariable Cox proportional hazards model, exposure with RH was associated with a 60% increased risk of OSA (adjusted hazard ratio (aHR): 1.60; 95% CI, 1.52–1.68) compared to non-RH exposure. Findings of the study suggest that exposure with RH, compared to non-RH, is associated with a higher risk of incident OSA.
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