Cerebrovascular consequences of obstructive sleep apnea.

However, when a model was used that added the number of cigarettes smoked per day, self-reported hypertension, systolic blood pressure, use of antihypertensive medications, and body mass index as additional covariates, the model approached but did not reach significance ( P =0.06; adjusted relative odds ratio 1.55; 95% CI, 0.96 to 2.50).

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