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. Author manuscript; available in PMC: 2012 Mar 2.
Published in final edited form as: J Am Geriatr Soc. 2005 Jan;53(1):94–98. doi: 10.1111/j.1532-5415.2005.53017.x

Table 2.

Ratings of Driving Ability by Participant, Informant, Physician, and Driving Instructor

Rater Normal Control
Very Mild AD
Mild AD
Safe Marginal Impaired Safe Marginal Impaired Safe Marginal Impaired
Frequency (Percentage)
Participant 24 (100) 0 (0) 0 (0) 31 (94) 2 (6) 0 (0) 16 (94) 1 (6) 0 (0)
Informant 24 (100) 0 (0) 0 (0) 22 (76) 7 (24) 0 (0) 8 (50) 8 (50) 0 (0)
Physician 25 (100) 0 (0) 0 (0) 22 (69) 9 (28) 1 (3) 9 (56) 6 (38) 1 (6)
Instructor 21 (84) 4 (16) 0 (0) 15 (46) 13 (39) 5 (15) 7 (41) 6 (35) 4 (24)

AD = Alzheimer’s disease.