Table 2.

Average Percentage of Correct Responses on the DAFS Tasks for AD and Controls Sorted by Better-to-Worst Accuracy Ranges

Accuracy Range	Patients With AD			Controls
	DAFS Task	Mean Accuracy	95% CI	DAFS Task	Mean Accuracy	95% CI
100–90%	ID currency	98.25	96.26–100.00	ID currency	100.00	100.00–100.00
	Shop with a list	96.43	93.15–99.71	Shop with a list	100.00	100.00–100.00
	ID road signs	92.65	88.64–96.66	Count currency	99.51	98.53–100.00
				ID road signs	98.82	97.61–100.00
				Tell time	98.04	95.57–100.00
				Orientation to date	97.55	94.85–100.00
				Write check	97.06	94.37–99.74
				Mail letter	96.08	92.89–99.27
				Telephone skills	95.10	93.10–97.10
				Driving rules	94.77	90.85–98.69
				Make change	92.45	85.10–99.80
80%	Write check	88.27	81.86–94.67	Shopping (recognition)	81.05	75.58–86.51
	Tell time	86.73	78.83–94.64
	Telephone skills	84.69	77.89–91.50
	Mail letter	81.63	74.76–88.49
	Count currency	80.10	70.61–89.60
70%	Driving rules	80.27	72.23–88.31	Balance checkbook	74.51	65.90–83.12
	Orient to date	70.92	59.63–82.21
60%	Make change	61.22	47.08–75.36	Shopping (free recall)	63.40	56.57–70.23
40%	Balance checkbook	46.94	35.45–58.45
	Shopping (recognition)	41.50	31.67–51.32
20%	Shopping recall	24.15	17.10–31.20

Abbreviations: AD, Alzheimer disease; CI, confidence interval; DAFS, Direct Assessment of Functional Status.