Detection of delirium by nurses among long-term care residents with dementia

BMC Nursing

Table 3 Comparison of bedside nurse and researcher (RA-1) delirium ratings at Time 1

	T1 (N = 151)
	RA-1 rating¹
Nurse rating	Delirium	No delirium
Delirium	14	3
No delirium	94	40
Sensitivity² [95% CI] : 13.0% [7.3–20.8]
Specificity³ [95% CI] : 93.0% [80.9–98.5]
Positive predictive value⁴ [95% CI] : 82.4% [56.6–96.2]
Negative predictive value ⁵ [95% CI] : 29.9% [22.3–38.4]

1 Research assistant rating of probable delirium, assessed with the CAM, was used as the reference standard.
2 Indicates how often nurses detected delirium when it was present (true positive rate).
3 Indicates how often nurses rated delirium as absent when it was not present (true-negative rate).
4 Indicates how often delirium was present when delirium was detected by nurses.
5 Indicates how often delirium was absent when delirium was not detected by nurses.

ISSN: 1472-6955