Table 1.

3D-CAM derived CAM-S (the 3D-CAM-S) compared to the CAM-S short form scores for assessments in the validation dataset (N=692 assessments)

		3D-CAM-S Score
	CAM-S Short Form Score	None	Mild	Moderate	Severe
		0	1	2	3	4	5	6	7	Total
None	0	403	0	0	0	0	0	0	0	403
Mild	1	0	154	12	0	0	0	0	0	166
Moderate	2	0	2	51	1	0	0	0	0	54
Severe	3	0	0	14	31	0	0	0	0	45
	4	0	0	0	10	6	2	0	0	18
	5	0	0	0	0	3	0	0	0	3
	6	0	0	0	0	0	3	0	0	3
	7	0	0	0	0	0	0	0	0	0
	Total	403	156	77	42	9	5	0	0	692

Weighted kappa for 8-level severity score = 0.93 (0.95% CI: 0.92-0.95)

Weighted kappa for 4-level severity score = 0.96 (0.95% CI: 0.94-0.97)

Weighted kappa for 8-level severity score, accounting for clustering at the patient level= 0.92 (95% CI: 0.87-0.96),

Abbreviations: 3D-CAM=3-Minute Diagnostic Interview of CAM-defined Delirium; CAM-S = Confusion Assessment Method-Severity