Table 1 Distribution profile of the vertigo symptom scale-short form in the total sample (n = 159)

10.1 ± 7.85

0.71

−0.32

8.2

0.6

1

A feeling that either you, or things around you, are spinning or moving, lasting less than 20 minutes

1.53 ± 1.45

0.45

−1.21

34.0

13.8

3

Nausea (feeling sick), vomiting

0.96 ± 1.25

1.14

0.05

52.2

5.7

4

A feeling that either you, or things around you, are spinning or moving, lasting more than 20 minutes

0.99 ± 1.36

1.20

0.07

54.1

10.1

6

A feeling of being dizzy, disorientated or swimmy, lasting all day

1.53 ± 1.58

0.52

−1.32

39.0

20.8

8

Unable to stand or walk properly without support, veering or staggering to one side

1.13 ± 1.39

0.96

−0.45

48.4

10.7

10

Feeling unsteady, about to lose balance, lasting more than 20 minutes

0.89 ± 1.29

1.19

0.06

60.4

6.3

13

Feeling unsteady, about to lose balance, lasting less than 20 minutes

1.32 ± 1.37

0.69

−0.78

39.0

10.7

15

A feeling of being dizzy, disorientated or swimmy, lasting less than 20 minutes

1.72 ± 1.47

0.33

−1.30

27.0

18.9

5.34 ± 4.96

1.11

0.95

17.0

0.0

2

Hot or cold spells

1.20 ± 1.40

0.81

−0.70

47.2

10.7

5

Heart pounding or fluttering

0.82 ± 1.17

1.35

0.76

57.2

4.4

7

Headache, or feeling of pressure in the head

1.42 ± 1.34

0.62

−0.79

32.1

11.3

9

Difficulty breathing, short of breath

0.64 ± 1.10

1.80

2.34

66.0

4.4

11

Excessive sweating

0.58 ± 1.08

1.94

2.82

69.2

3.8

12

Feeling faint, about to black out

0.46 ± 0.90

2.09

3.76

73.6

1.3

14

Pains in the heart or chest region

0.21 ± 0.59

3.31

11.66

84.9

0.0

15.4 ± 11.3

0.86

0.30

3.1

0.0