| | British Medical Journal: Obstructive sleep apnoea syndrome as a risk factor for hypertension: population study (Site not responding. Last check: 2007-11-07) |
 | | Multiple regression analysis of blood pressure levels of all patients not taking antihypertensives showed that apnoea was a significant predictor of both systolic and diastolic blood pressure after adjustment for age, body mass index, and sex. |
 | | The strong association between obstructive sleep apnoea syndrome and hypertension has attracted considerable attention in recent years.[1-6] Despite the accumulated evidence suggesting a causal relation between these two conditions, doubts have been raised about how much of this association is contributed by confounding variables, most notably obesity, age, and male sex. |
 | | Apnoea was defined as a cessation in airflow of at least 10 seconds, and hypopnoea was defined as a decrease in the amplitude of the respiratory signal of at least 50% for a minimum of 10 seconds followed by either a decrease in oxygen saturation of 4% or signs of physiological arousal. |
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