Table 5.

Comparison of results of USC ADRC and telephone survey-based classification in three categories. Assumption 2: AAMI (age-associated memory impairment) considered cognitive impairment.

		Gold Standard Classification
		AD or Mixed Dementia	Cognitive Impairment	Normal	All
Classification by Telephone Assessment	Dementia	5	0	0	5
	Cognitive Impairment	0	3	1	4
	No or Minimal Impairment	1	5	23	29
	All	6	8	24	38

Telephone Assessment

Sensitivity for dementia 5/6 = 0.83 (95% confidence interval 0.35, 0.99)

Sensitivity for cognitive impairment 3/8 = 0.38 (95% confidence interval 0.09, 0.76)

Specificity for normal 23/24 = 0.96 (95% confidence interval 0.79, 1.00)

Kappa 0.61 (95% confidence interval 0.37, 0.85)