Physical load factor

Prevalence of positive findings %

Interobserver repeatability

Validity

Observer 1

Observer 2

Observer 1

Observer 2

Expert

Ps

k
(95% CI)

k₁
(95% CI)

Se₁

Sp₁

k₂
(95% CI)

Se₂

Sp₂

Repetitive use of hand

·       right

64

68

73

.86

.58
(.43 .73)

.50
(.34 .65)

.79

.77

.45
(.28 .62)

.80

68

·       left

51

63

72

.83

.60
(.47 .74)

.51
(.38 .65)

.69

.95

.46
(.30 .62)

77

.74

Use of hand force

·       right

54

56

58

.87

.71
(.59 .83)

.70
(.58 .82)

.84

.87

.73
(.60 .85)

.87

.87

·       left

49

58

56

.82

.60
(.47 .74)

.69
(.56 .81)

.80

.90

.59
(.45 .74)

.85

.75

Pinch grip

·       right

33

26

31

.70

.58
(.43 .74)

.64
(.50 .78)

.76

.88

.69
(.55 .83)

.72

.95

·       left

48

37

42

.77

.61
(.48 .75)

.51
(.36 .66)

.78

.74

.46
(.30 .61)

.83

.58

Nonneutral wrist posture

·       right

91

80

79

.91

.41
(.20 .62)

.38
(.18 .58)

.97

.33

.42
(.23 .61)

.89

.52

·       left

84

75

80

.87

.34
(.15 .54)

.56
(.37 .74)

.94

.58

.38
(.19 .57)

.83

.58

Elevation of upper arm

·       right

11

12

9

.71

.68
(.47 .89)

.57
(.33 .81)

.67

.95

.40
(.15 .66)

.55

.92

·       left

12

15

13

.47

.39
(.16 .61)

.45
(.22 .68)

.50

.94

.24
(.02 .46)

38

.88

Local mechanical pressure

·         right

16

14

3

.36

.24
(.03 0.46)

.20
(.01 .41)

.75

.85

.23
(.0 .47)

.75

.88

·         left

17

6

9

.27

.19
(.02 .40)

.33
(.11 .55)

.58

.87

.46
(.18 .74)

.42

.97