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Table 3 Diagnostic accuracy of the Clock Drawing Test (CDT) for the diagnosis of neurocognitive disorder (NCD)

From: Diagnostic accuracy of the Clock Drawing Test in screening for early post-stroke neurocognitive disorder: the Nor-COAST study

CDT cut-off score

Sensitivity (%)

95% CI

Specificity (%)

95% CI

PPV (%)

95% CI

NPV (%)

95% CI

Any NCD

  < 4

36

31–41

88

83–91

78

70–84

54

49–58

  < 5

68

62–73

61

54–66

67

62–72

61

55–67

Major NCD

  < 4

54

46–62

85

81–88

55

46–63

85

81–88

  < 5

78

70–84

53

48–58

36

31–41

88

83–91

  1. PPV positive predictive value, NPV negative predictive value, CI confidence interval
  2. n = 554
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BMC Neurology

ISSN: 1471-2377

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