Table 1.

Demographic variables and trail-making test scores of parents, cases and controls

	Parents (N=196)	Cases (N=172)	Controls (N=120)
Age	55.67 (8.70)*	30.34 (9.78)	30.11 (12.83)
Education	12.43 (3.90)	12.25 (3.14)	12.13 (3.13)
Information score	22.06 (6.12)	18.51 (6.71)	20.89 (5.38)
Mean time Part A	91.78 (57.00)	86.64 (51.14)	75.38 (31.81)
Mean time Part B	229.11 (173.48)	216.51 (173.48)	150.69 (49.84)
Part B-A	136.49 (180.24)	129.87 (157.25)	75.3 (48.15)

^*Values in parentheses are standard deviation scores