Table 3.

Univariable and Multivariable Regression Analysis for the Comparisons of Controls (CON) (reference) vs. Late-onset dOH, CON (reference) vs. Early-onset dOH, and Late-onset dOH (reference) vs. Early-onset dOH

	Univariable logistic regression				Multivariable logistic regression
Valsalva metrics	RR	Lower 95% CI	Upper 95% CI	P-value	RR	Lower 95% CI	Upper 95% CI	P-value
CON (reference) vs. late-onset dOH
PRT	2.497	1.806	3.454	< 0.001	2.189	1.579	3.036	< 0.001
ΔHR VM3	0.878	0.833	0.925	< 0.001	0.897	0.847	0.951	< 0.001
CON (reference) vs. early-onset dOH
PRT	2.716	1.966	3.752	< 0.001	2.355	1.701	3.26	< 0.001
ΔHR VM3	0.819	0.78	0.861	< 0.001	0.869	0.823	0.917	< 0.001
Late-onset dOH (reference) vs. early-onset dOH
PRT	1.088	1.035	1.143	< 0.001	1.075	1.012	1.133	0.006
ΔHR VM3	0.934	0.886	0.983	0.009	0.968	0.916	1.024	ns

Abbreviations: RR, relative risk ratio.