Nocturnal Blood Pressure Decrease in Hypertensive Patients and Normotensives- Association with Obstructive Sleep Apnoea and Renal Function

Table 3: The predictive value of using 24h CASP to diagnose non-dipping with 24h brachial dipping as reference in hypertensive patients and healthy controls.

	Controls (n=49)	Patients (n=64)
	Predictive Value of Non-Dipping
10% nocturnal CASP decrease	17%	38%
5% nocturnal CASP decrease	14%	25%

Abbreviation: CASP: Central Aortic Systolic Pressure.
Calculations: Predictive value of non-dipping = (CASP and brachial non-dippers)/(all CASP non-dippers)*100.