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. Author manuscript; available in PMC: 2013 Nov 1.
Published in final edited form as: J Am Geriatr Soc. 2012 Oct 5;60(11):2121–2126. doi: 10.1111/j.1532-5415.2012.04200.x

Table 2.

Sensitivity, Specificity and Kappa for FAM-CAM Questions (first record/dyad, N=52)

FAM-CAM Questions Sensitivity % (95% CI)* Specificity % (95% CI)** Kappa (95% CI)
Original CAM Algorithm: Acute 88 (7/8) 98 (43/44) 0.85
Onset + Fluctuation + Inattention + Disorganized thinking or Altered consciousness (47, 99) (86, 100) (0.65, 1.00)
Added: Disorientation 75 (6/8) (42, 100) 98 (43/44) (85, 100) 0.77 (0.51, 1.00)
Added: Perceptual Disturbances 50 (4/8) 100 (44/44) 0.63
(Hallucinations) (40, 100) (80, 98) (0.30, 0.95)
Added: “Inappropriate behavior” 38 (3/8) (10, 74) 100 (44/44) (90, 100) 0.50 (0.14, 0.86)
Added: Disorientation + Perceptual 13 (1/8) 100 (44/44) 0.19
Disturbances (Hallucinations) + “Inappropriate behavior” (<1, 53) (90, 100) (−0.13, 0.52)

NOTE: CAM=Confusion Assessment Method; FAM-CAM=Family Confusion Assessment Method;

*

Sensitivity=proportion screened as delirious using the FAM-CAM among those screened as delirious using the CAM;

**

Specificity=proportion screened as not delirious using the FAM-CAM among those not screened as delirious using the CAM.