Table 2.

Demographics for each group

MAA (n = 21)ALC (n = 13)CON (n = 27)Group differences
Age9.66 (1.85)11.15 (2.34)10.15 (2.90)None
Female/male9/125/816/11None
Handedness [right (100) to left (−100)]60.45 (47.99)55.83 (59.76)70.63 (28.15)None
Family annual income7.714 (1.90)6.77 (2.42)6.96 (2.72)None
FSIQ97.81 (12.77), n = 2189.50 (13.53), n = 12110.32 (16.73), n = 25 F (2,55) = 9.08, p < 0.001;CON > ALC, t = −4.05,p < 0.001; CON > MAA,t = 2.87, p = 0.006
  • Values expressed as mean (SD). Family annual income is a categorical variable: 1, <$5000; 2, $5000–9999; 3, $10,000–19,999; 4, $20,000–29,999; 5, $30,000–39,999; 6, $40,000–49,999; 7, $50,000–74,999; 8, $75,000–100,000; 9, >$100,000.