Research
Mixed
Obstructive sleep apnea (OSA) is highly prevalent and largely unrecognized in patients with drug-resistant hypertension, with a prevalence of 83% in a specific cohort, significantly higher than in the general population.
If your blood pressure remains high despite taking three or more medications, ask your doctor about screening for sleep apnea. It is a very common, often silent cause of resistant hypertension, and treating it can significantly improve your blood pressure control.
GoodSupportsHIGH confidence
Prevalence of OSA, defined as an apnea-hypopnea index of >10 obstructive events per hour of sleep, was 83% in the 24 men and 17 women studied.
Why this rating
Cross-sectional study with a clear definition of OSA and a specific, high-risk population.
Source
High prevalence of unrecognized sleep apnoea in drug-resistant hypertension
Alexander G. Logan et al. · Journal of Hypertension · 2001
DOI 10.1097/00004872-200112000-00022
cross_sectional · n=157Cited 953×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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