Hemodynamic Response to Upper Airway Obstruction in Hypertensive and Normotensive Pregnant Women

Table 3

Airflow reduction index.

	Airflow reduction events (count)	Total sleep time (minutes)	Airflow reduction index (events/hr ± SD)
Overall	1606	8044
Sleep stage
NREM	1410	7158.3		0.37
REM	196	885.7
Pregnancy status
Healthy	815	4139.3		0.68
GH	791	3904.7

t-test comparison of means. GH, gestational hypertension; NREM, nonrapid eye movement; REM, rapid eye movement; SD, standard deviation.