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Table 2 Sensitivity, specificity, positive predictive value, area under ROC curve of predictor variables associated with the presence of foot pain on most days in the last month

From: Predictors of foot pain in the community: the North West Adelaide health study

 

Sensitivity (%)

Specificity (%)

Positive predictive value (%)

Area under ROC curve (%, 95 % CI)

Sex

59.28

49.80

35.67

54.54 (52.47–56.61)

Age 65 and over

29.25

77.14

37.36

53.19 (51.31–55.08)

Current smoker

16.42

83.97

32.46

50.19 (48.60–51.79)

Depressive symptoms

18.69

92.18

52.38

55.44 (53.91–56.96)

Intermediate to high alcohol risk

6.26

94.44

34.85

50.35 (49.31–51.40)

Not physically active

31.40

72.90

35.57

52.15 (50.08–54.22)

BMI obese

39.36

74.41

41.82

56.88 (54.83–58.94)

Diabetes

10.74

92.10

38.94

51.42 (50.13–52.71)

Arthritis

41.05

79.07

47.58

60.06 (58.06–62.06)

Foot pain

35.16

91.70

66.18

63.43 (61.61–65.24)

Heel pain

7.63

98.06

64.77

52.85 (51.84–53.86)

Ball pain

10.17

98.00

70.37

54.09 (52.95–55.23)

Arch pain

9.24

98.00

68.32

53.62 (52.52–54.71)

Nail pain

0.67

99.75

55.56

50.21 (49.89–50.53)

Toe pain

12.72

97.25

68.35

54.98 (53.72–56.25)

Forefoot pain

15.53

96.38

66.67

55.95 (54.57–57.33)

Hindfoot pain

9.50

97.25

61.74

53.38 (52.25–54.50)

Podiatry use

18.26

91.71

50.54

54.99 (53.47–56.50)

Hip pain/stiffness

18.72

91.86

51.47

55.29 (53.74–56.84)

Back pain/stiffness

48.76

68.39

41.56

58.58 (56.48–60.67)

Hand pain/stiffness

25.88

88.13

50.12

57.00 (55.27–58.74)

Shoulder pain/stiffness

35.16

80.23

45.06

57.70 (55.75–59.64)

Knee pain/stiffness

25.76

86.99

47.56

56.38 (54.62–58.13)