Table 2 Characteristics of Swiss chiropractor participants, EPR users, and EPR non-users

Sex

 Female

77

35.5

43

42.2

34

29.6

 Male

140

64.5

59

57.8

81

70.4

Age – mean ± SD (y)

50.7 ± 11.2

47.2 ± 10.9

53.8 ± 10.4

Age (y)

 ≤ 29

4

1.8

3

2.9

1

0.9

 30–39

27

12.4

18

17.6

9

7.8

 40–49

68

31.3

42

41.2

26

22.6

 50–59

71

32.7

26

25.5

45

39.1

 60–69

35

16.1

9

8.8

26

22.6

 ≥ 70

10

4.6

4

3.9

6

5.2

 NA

2

0.9

0

0

2

1.7

Language

 German

140

64.5

68

66.7

72

62.6

 French

67

30.9

28

27.5

39

33.9

 Italian

10

4.6

6

5.9

4

3.5

Clinical experience – mean ± SD (y)

22.1 ± 10.1

18.9 ± 10.2

25.1 ± 9.2

Clinical experience (y)

 ≤ 10

28

12.9

22

21.6

6

5.2

 11–20

71

32.7

37

36.3

34

29.6

 21–30

79

36.4

31

30.4

48

41.7

 31–40

28

12.9

9

8.8

19

16.5

 41–50

9

4.1

3

2.9

6

5.2

 ≥ 50

1

0.5

0

0

1

0.9

 NA

1

0.5

0

0

1

0.9

Practice size – N chiropractors

 1

102

47.0

39

38.2

63

54.8

 2–3

81

37.3

36

35.3

45

30.7

 ≥ 4

34

15.7

27

26.5

7

6.1