| ADHD | Siblings | Control |  |
---|---|---|---|---|
 | N = 136 | N = 83 | N = 105 |  |
 | Mean ± SD | Mean ± SD | Mean ± SD | Comparison* |
Age (years) | 17.71 ± 3.04 | 18.36 ± 3.78 | 17.18 ± 3.01 | ADHD = SIBS + CON; SIBS > CON |
IQ | 98.40 ± 14.80 | 99.11 ± 14.00 | 107.77 ± 13.91 | CON > (ADHD = SIBS) |
Conners T Score (combined scales) | 69.76 ± 12.92 | 47.73 ± 6.69 | 45.38 ± 4.52 | ADHD > SIBS > CON |
CSBQ ASD | 10.56 ± 9.44 | 9.14 ± 10.10 | 3.43 ± 4.54 | (ADHD = SIBS) > CON |
CSBQ Lack of Social Interest | 3.89 ± 4.35 | 3.27 ± 4.14 | 1.12 ± 2.12 | (ADHD = SIBS) > CON |
CSBQ Problems with Social Understanding | 3.93 ± 3.80 | 3.36 ± 3.75 | 1.38 ± 2.12 | (ADHD = SIBS) > CON |
CSBQ Stereotypical Behaviour | 1.43 ± 2.32 | 1.42 ± 2.23 | 0.45 ± 1.06 | (ADHD = SIBS) > CON |
CSBQ Resistance to Change | 1.32 ± 1.65 | 1.10 ± 1.67 | 0.48 ± 1.01 | (ADHD = SIBS) > CON |
Reward Hit rate | .361 ± 0.06 | .360 ± 0.06 | .362 ± 0.06 | ADHD = SIBS = CON |
No Reward Hit rate | .335 ± 0.07 | .333 ± 0.06 | .335 ± 0.06 | ADHD = SIBS = CON |
RT Reward Hits (ms) | 292 ± 38.02 | 284 ± 67.64 | 283 ± 66.45 | ADHD = SIBS = CON |
RT No Reward Hits (ms) | 326 ± 54.12_ | 314 ± 79.54 | 310 ± 75.86 | ADHD = SIBS = CON |
RT Reward Miss (ms) | 294 ± 40.10 | 283 ± 64.40 | 283 ± 64.40 | ADHD = SIBS = CON |
RT No Reward Miss (ms) | 331 ± 59.06 | 311 ± 73.36 | 309 ± 78.13 | ADHD > CON, ADHD = SIBS, SIBS = CON |
Adulta | 49.3Â % | 44.6Â % | 39.0Â % | Equal** |
Siteb | 40Â % | 40Â % | 59Â % | Unequal** |
Sex | 69Â % M | 45Â % M | 45Â % M | Unequal** |