Table 3.

Pearson correlation coefficients of vasomotor regulation in the migraine group (upper part) and the control group (lower part)

Migraine group
	HG	CSV	SBPOL	DBPOL	IBPVM	BPV
HG	1	0.17	0.09	0.04	0.17	0.35
		p = 0.21	p = 0.48	p = 0.7	p = 0.20	p  < 0.01
CSV	0.17	1	0.29	0.22	0.13	0.38
	p = 0.21		p  < 0.05	p = 0.089	p = 0.322	p  < 0.005
SBPOL	0.09	0.29	1	0.81	−0.19	−0.01
	p =0.48	p <0.05		p  < 0.001	p = 0.143	p <0.91
DBPOL	0.04	0.22	0.81	1	−0.25	0.02
	p = 0.74	p = 0.09	p  < 0.001		p = 0.05	p = 0.87
IBPVM	0.17	0.13	−0.19	−0.25	1	0.42
	p = 0.2	p = 0.3	p = 0.1	p = 0.05		p  < 0.001
BPV	0.35	0.38	−0.01	0.02	0.42	1
	p  < 0.01	p  < 0.005	p = 0.91	p = 0.87	p  < 0.001
Control group
	HG	CSV	SBPOL	DBPOL	IBPVM	BPV
HG	1	0.14	0.13	0.09	0.19	0.33
		p = 0.27	p = 0.30	p = 0.50	p = 0.13	p  < 0.01
CSV	0.14	1	0.25	0.16	0.06	0.42
	p = 0.27		p  < 0.05	p = 0.23	p = 0.66	p  < 0.001
SBPOL	0.13	0.25	1	0.82	−0.10	−0.02
	p = 0.30	p  < 0.05		p <  0.001	p = 0.415	p = 0.903
DBPOL	0.09	0.16	0.82	1	−0.13	−0.01
	p = 0.50	p = 0.23	p  < 0.001		p = 0.31	p = 0.94
IBPVM	0.19	0.06	−0.10	−0.13	1	0.35
	p = 0.13	p = 0.66	p = 0.42	p = 0.31		p  < 0.005
BPV	0.33	0.42	−0.02	−0.01	0.35	1
	p  < 0.01	p  < 0.001	p = 0.903	p = 0.942	p  < 0.005

Legend: HG handgrip test, CSV cold-stress vasoconstriction, SBPOL systolic blood pressure orthostatic load, DBPOL diastolic blood pressure orthostatic load, IBPVM increment of mean blood pressure during Valsalva Maneuver, BPV blood pressure variability, significant correlation is highlighted by bold fonts