Table 5.

Valsalva Maneuver Metrics

	Hyperadrenergic Orthostatic Hypotension (n=19)	Nonhyperadrenergic Orthostatic Hypotension (n=64)	P-value
Pressure Recovery Time (sec)	16.5±8.9	31.6±16.6	<0.001*
Adrenergic baroreflex sensitivity (mmHg/sec)	5.8±4.0	3.9±4.3	0.093
Phase 2 SBP Decrement (mmHg)	77±38	78±25	0.895
Phase 2 DBP Decrement (mmHg)	16±10	25±13	0.008*
Difference between baseline SBP and end of phase 2 SBP (mmHg)	52±32	63±27	0.140
Difference between baseline DBP and end of phase 2 DBP (mmHg)	9±10	13±14	0.310
Valsalva Ratio	1.18±0.15	1.12±0.12	0.081
Baseline heart rate (beats/min)	73±14	73±11	0.840
Maximum heart rate (beats/min)	85±15	84±13	0.825
Heart rate at conclusion of Valsalva maneuver (beats/min)	78±13	74±12	0.278
Presence of phase 2 late (%)	4 (21%)	8 (13%)	0.464
Presence of phase 4 overshoot (%)	2 (11%)	2 (3%)	0.223

Data presented as mean±standard deviation. Reported P values are for t-test comparing hyperadrenergic vs. Non-hyperadrenergic orthostatic hypotension groups unless otherwise noted for continuous data and Fisher’s Exact test for categorical data. sec, seconds; mmHg, millimeters of mercury.

^*P-value <0.05