Table 5 Associations between baseline parameters and HAH (N = 129)

Headache Cases(n)

HAH-(31)

HAH+(98)

p value

r

p value

Demographic factors

Age

22.71 ± 3.21

23.13 ± 4.31

0.616

0.093

0.297

BMI

21.41 ± 1.67

22.07 ± 2.52

0.175

0.153

0.084

Smoking(yes)

7(22.5%)

23(23.5%)

0.919

/

/

Alcohol consumption(yes)

21(67.7%)

58(59.2%)

0.396

/

/

Primary headache(yes)

4(12.9%)

23(23.5%)

0.209

/

/

Systemic hemodynamic

SBP

118.35 ± 10.81

117.32 ± 12.37

0.676

0.018

0.843

DBP

74.00 ± 9.22

75.18 ± 11.31

0.598

0.059

0.509

ΔBP

44.35 ± 6.47

42.13 ± 6.37

0.094

−0.137

0.122

MAP

88.78 ± 9.29

89.22 ± 11.28

0.843

0.061

0.490

HR

63.32 ± 11.35

64.42 ± 10.10

0.607

0.008

0.930

SpO2

98.35 ± 1.02

98.30 ± 1.10

0.793

0.038

0.670

LA

31.06 ± 1.55

30.87 ± 1.78

0.581

−0.062

0.484

LV

45.81 ± 2.14

46.71 ± 2.50

0.071

0.183

0.037*

RA

35.45 ± 1.98

35.78 ± 2.27

0.478

0.153

0.082

RV

35.29 ± 1.85

35.55 ± 2.13

0.542

0.109

0.217

PA

20.06 ± 1.46

20.30 ± 1.63

0.481

0.094

0.288

EF

62.90 ± 5.98

63.10 ± 5.34

0.865

0.002

0.978

SV

62.53 ± 16.31

66.55 ± 10.61

0.113

0.088

0.322

CO

3.79 ± 1.01

4.33 ± 0.93

0.007**

0.177

0.045*

Tricuspid regurgitation

0.50(1.00)

0.45(1.00)

0.372

−0.030

0.739

Cerebral hemodynamic

Left side MCA

V_m

59.61 ± 8.24

63.24 ± 10.92

0.091

0.060

0.501

V_s

93.48 ± 12.13

97.00 ± 15.21

0.246

0.062

0.488

V_d

40.93 ± 6.20

43.62 ± 8.37

0.102

0.058

0.513

PI

0.889 ± 0.154

0.852 ± 0.125

0.180

−0.004

0.960

RI

0.562 ± 0.051

0.550 ± 0.047

0.221

−0.015

0.862

Left side VA

V_m

30.94 ± 5.25

33.23 ± 4.97

0.029*

0.171

0.053

V_s

49.64 ± 7.11

50.82 ± 7.56

0.444

0.083

0.351

V_d

20.68 ± 4.17

22.26 ± 3.95

0.056

0.142

0.107

PI

0.957 ± 0.193

0.873 ± 0.169

0.022*

−0.150

0.090

RI

0.594 ± 0.075

0.561 ± 0.056

0.010*

−0.159

0.072

Right side MCA

V_m

54.29 ± 7.03

60.20 ± 10.37

0.004**

0.155

0.080

V_s

85.64 ± 10.46

92.11 ± 14.53

0.023*

0.125

0.157

V_d

37.19 ± 5.50

41.42 ± 7.60

0.005**

0.114

0.200

PI

0.888 ± 0.150

0.855 ± 0.146

0.276

−0.078

0.380

RI

0.574 ± 0.062

0.586 ± 0.053

0.592

−0.093

0.292

Right side VA

V_m

32.77 ± 5.30

34.84 ± 4.40

0.032

0.126

0.155

V_s

49.38 ± 6.88

51.03 ± 6.33

0.220

0.073

0.411

V_d

22.09 ± 4.29

23.64 ± 3.95

0.065

0.110

0.216

PI

0.849 ± 0.160

0.793 ± 0.156

0.086

−0.141

0.110

RI

0.555 ± 0.055

0.534 ± 0.061

0.081

−0.134

0.130

BA

V_m

37.55 ± 7.36

40.50 ± 7.80

0.065

0.154

0.082

V_s

66.29 ± 13.65

68.53 ± 13.87

0.433

0.054

0.546

V_d

23.48 ± 5.08

25.69 ± 5.97

0.066

0.139

0.115

PI

0.964 ± 0.210

0.885 ± 0.197

0.092

−0.104

0.239

RI

0.644 ± 0.055

0.621 ± .0714

0.108

−0.074

0.404

Asymmetry of bilateral VAs

ΔV_s

2.0 (15.0)

0.0(9.25)

0.795

0.042

0.634

ΔV_d

0.0(6.0)

−2.0 (6.0)

0.703

0.017

0.851

ΔV_m

−2.0 (8.0)

−1.0 (7.0)

0.934

0.064

0.468

AI%

−0.061 (0.224)

−0.034(0.200)

0.815

0.075

0.398

Conduction

CVCi

0.648 ± 0.103

0.704 ± 0.145

0.048*

0.097

0.275