睡眠呼吸暂停低通气(obstructive sleep apnea-hypopnea,OSAH)是系统性动脉高血压(systemic ar-terial hypertension,SAH)的危险因素,可导致SAH病情的恶化。该研究旨在确定参加呼吸研究的疑似OSAH人群中,进行长期持续气道正压(continuous positive airway pressure,CPAP)治疗对于控制及预防SAH的作用。方法 :入选495名研究对象,其中422例患OSAH,73例无OSAH。询问病史,测量动脉血 Obstructive sleep apnea-hypopnea (OSAH) is a risk factor for systemic ar- terial hypertension (SAH) and can lead to the worsening of SAH. The aim of this study was to determine the effect of long-term continuous positive airway pressure (CPAP) treatment on the control and prevention of SAH among suspected OSAH populations participating in respiratory studies. Methods: 495 subjects were enrolled, of whom 422 had OSAH and 73 had no OSAH. Ask history, measure arterial blood