. Author manuscript; available in PMC: 2021 May 1.

Published in final edited form as: J Am Geriatr Soc. 2020 Apr 10;68(5):983–990. doi: 10.1111/jgs.16438

Table 3.

Performance characteristics of the FAM-CAM Overall and Stratified by Dementia

	LR+ (95% CI)	LR− (95% CI)	Sensitivity	Specificity	PPV	NPV	False Negative^a
			Percentage (95% CI)				n (%)

Overall
FAM-CAM (N=108)	3.4 (1.4, 5.4)	0.5 (0.3, 0.7)	56.7 % (39%, 74%)	83.3 % (75%, 92%)	56.7% (37%, 75%)	83.3% (73%, 91%)	13 (12)
Stratified by dementia
Dementia (N=55)	2.2 (0.7, 3.6)	0.6 (0.3, 0.9)	60.8% (41%, 81%)	74.3% (59%, 88%)	60.8% (41%, 81%)	74.3% (60%, 89%)	9 (16)
No Dementia (N=53)	5.6 (−1.1, 12.3)	0.6 (0.2, 0.9)	42.8% (6%, 80%)	90.7% (82%, 99%)	42.8% (6%, 80%)	90.7% (82%, 99%)	4 (8)

Note:

with FAM-CAM against CAM, FAM-CAM: Family Confusion Assessment Method, CAM: Confusion Assessment Method, PPV: Positive predictive value, NPV: Negative predictive value