Table 4 Prediction of cortical thickness reduction in (a) the left superior frontal gyrus and (b) the right using KCL (1–5) score points.

From: Correlation between frailty and reduction in cortical thickness in patients with chronic obstructive pulmonary disease

Cut-off point

Sensitivity (%)

Specificity (%)

PPV (%)

NPV (%)

(a)

 1

100.0

46.7

38.5

100.0

 2

90.0

73.3

52.9

95.7

 3

60.0

83.3

54.5

86.2

 4

40.0

90.0

57.1

81.8

 5

20.0

96.7

66.7

78.4

(b)

 1

100.0

46.7

38.5

100.0

 2

90.0

73.3

52.9

95.7

 3

70.0

86.7

63.6

89.7

 4

50.0

93.3

71.4

84.8

 5

20.0

96.7

66.7

78.4

  1. KCL: Kihon Checklist, PPV: positive predictive value, NPV: negative predictive value.
Back to article page