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

BMC Nursing

Table 4 Comparison of bedside nurse and researcher (RA-1) delirium ratings at Time 2

	T2 (N = 151)
	RA-1 rating¹
Nurse rating	Delirium	No delirium
Delirium	20	6
No delirium	87	38
Sensitivity² [95% CI] : 18.7% [11.8–27.4]
Specificity³ [95% CI] : 86.4% [72.6–94.8]
Positive predictive value⁴ [95% CI] : 76.9% [56.4–91.0]
Negative predictive value⁵ [95% CI] : 30.4% [22.5–39.3]

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