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Table 8 Concurrent validity of RADAR compared with a DSM-IV-TR criterion-defined delirium in different sub-samples of participants (based on 3 to 4 RADAR administrations N = 113)

From: Recognizing acute delirium as part of your routine [RADAR]: a validation study

Sub-samples of participants (n)

Sensitivity % [95% CI]

Specificity % [95% CI]

Positive, predictive value, % [95% CI]

Negative, predictive value, % [95% CI]

With cognitive impairment, (42)

71.4 [29.0-96.3]

42.9 [26.3-60.6]

20.0 [6.8-40.7]

88.2 [63.6-98.5]

Without cognitive impairment, (71)

75.0 [19.4-99.4]

79.1 [67.4-88.1]

17.6 [3.8-43.4]

98.1 [90.1-100.0]

With psychomotor retardation, (46)

70.0 [34.8-93.3]

44.4 [27.9-61.9]

25.9 [11.1-46.3]

84.2 [60.4-98.9]

Patients (hospital), (73)

70.0 [34.8-93.3]

81.0 [69.1-89.8]

36.8 [16.3-61.6]

94.4 [84.6-98.8]

Residents (nursing home), (40)

100.0 [2.5-100.0]

43.6 [27.8-60.4]

4.3 [0.1-21.9]

100.0 [80.5-100.0]

  1. CI: Confidence interval.