This study was supported by the grants from the National Natural Science Foundation of China (No. 30800507, No. 30770934). All the coauthors from different centers in the name list have made equal contributions to this article. There is no ordering difference. None of the authors has a financial relationship with a commercial entity that has an interest in the subject of this manuscript.
Background The nocturnal nondipping and elevated morning blood pressure (BP) in patients with obstructive sleep apnea syndrome (OSAS) have not yet been well investigated in Chinese patients. This study aimed to de...