Table 3 Univariate logistic regression for anxiety (GAD-7) aspects as covariates and migraine vs no headache as binary outcome

Anxiety

Feeling nervous, anxious or on edge

1

36

-

-

2

114

2.73 (1.15–6.52)

0.023

3

30

14.00 (4.26–46.05)

<.001

4

33

25.37 (6.86–93.83)

<.001

Not being able to stop or control worrying

1

71

-

-

2

85

16.03 (6.76–38.02)

<.001

3

28

23.62 (7.65–73.00)

<.001

4

29

49.22 (13.60–178.18)

<.001

Worrying too much about different things

1

59

-

-

2

91

12.45 (5.08–30.51)

<.001

3

33

19.81 (6.60–59.50)

<.001

4

30

24.41 (7.68–77.62)

<.001

Trouble relaxing

1

46

-

-

2

111

4.04 (1.78–9.15)

<.001

3

27

18.09 (5.37–60.90)

<.001

4

29

25.69 (7.13–92.64)

<.001

Being so restless that is hard to sit still

1

98

-

-

2

68

4.31 (2.23–8.35)

<.001

3

26

2.81 (1.16–6.82)

0.022

4

21

12.37 (3.39–45.06)

<.001

Becoming easily annoyed or irritable

1

58

-

-

2

104

3.81 (1.87–7.79)

<.001

3

27

7.46 (2.69–20.74)

<.001

4

24

22.00 (5.70–84.95)

<.001

Feeling afraid as if something awful migth happen

1

99

-

-

2

69

4.11 (2.14–7.90)

<.001

3

26

4.94 (1.94–12.57)

<.001

4

19

18.65 (4.06–85.72)

<.001