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

Table 1

Characteristics of patients in the study sample with Portapres monitoring. All values are mean ± standard deviation unless otherwise noted.

Patient characteristics	Overall ()	Healthy ()	Gestational hypertension ()	value
Age (years)
Gestational age (weeks)
Comorbidities
BMI (kg/m^2)				<
Hypertension (yes versus no)	7% (3/40)	0% (0/15)	11% (3/25)
Proteinuria (yes versus no)	42% (18/25)	0% (0/15)	64% (18/10)	<
Medications (≥1 versus 0)
	51% (22/21)	0% (0/15)	79% (22/6)	<
	12% (5/37)	0% (0/15)	20% (5/22)
Hemodynamics
SBP (mm Hg)
DBP (mm Hg)
Heart rate (bpm)
Oxygen saturation (%)
Sleep characteristics
ESS
Snoring (yes versus no)	67% (29/14)	40% (6/9)	82% (23/5)
TST (min)
Sleep efficiency (%)
% supine (%)
% REM (%)
AHI (events/h)
RDI (events/h)
AI (events/h)

t-test comparison of means. Mann–Whitney U test. Chi-square test. BMI, body mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure; ESS, Epworth sleepiness scale; REM, rapid eye movement; AHI, apnea hypopneas index; RDI, respiratory disturbance index; AI, apnea index. Antihypertensive medications included labetalol, nifedipine, and methyldopa. One participant was missing medication data. All values pertaining to sleep medications are calculated from . Baseline hemodynamics were calculated from the values recorded immediately prior to an apnea, hypopnea, and RERA during Portapres monitoring.