Table 4 Convergent validity: Item of RADAR vs. corresponding CAM item
From: Recognizing acute delirium as part of your routine [RADAR]: a validation study
RADAR items | CAM | Number of CAM assessments on which the CAM item is rated | % of agreement | Kappa [95% CI] |
|---|---|---|---|---|
Item #1, “…was the patient drowsy?” | CAM 4, Level of consciousness, Hypoalert | 1 | 83.9 (162/193) | 0.36 [0.19-0.53] |
2 | 76.7 (148/193) | 0.25 [0.11-0.39] | ||
3 | 65.8 (127/193) | 0.15 [0.05-0.26] | ||
Item #2, “…trouble following your instructions?” | CAM 2, Inattention | 1 | 51.8 (100/193) | 0.08 [0.03-0.12] |
2 | 43.5 (84/193) | 0.08 [0.03-0.12] | ||
3 | 35.8 (69/193) | 0.08 [0.03-0.12] | ||
Item #2, “…trouble following your instructions?” | CAM 4 and 8, Hyper-alert/Agitation | 1 | 85 (164/193) | 0.16 [−0.02-0.33] |
2 | 85 (164/193) | 0.16 [−0.02-0.33] | ||
3 | 85 (164/193) | 0.16 [−0.02-0.33] | ||
Item #3, “…movements slowed down?” | CAM 9, Psychomotor retardation | 1 | 76.6 (147/192) | 0.40 [0.25-0.54] |
2 | 76.0 (146/192) | 0.43 [0.29-0.57] | ||
3 | 75.0 (144/192) | 0.42 [0.28-0.56] |