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. 2021 May 7;31:102695. doi: 10.1016/j.nicl.2021.102695

Table 1.

Sample demongraphics for ADHD and typically-developing children.

ADHD
(n=101)
Control
(n=35)
Total
(n=136)
Stats
Age yrs. (SD) 9.51 (1.67) 8.83 (2.1) 9.34 (1.8) F1,135=3.88;
p=.051
Full Scale IQ (SD) 97.26 (13.52) 109.94 (14.31) 100.52 (14.76) F1,131=21.57;
p=.000
Sex (% male) 76/101 (75) 16/35 (46) 92/136 (68) X2=10.38; df=1;
p=.001
Income (%)
<10K 4/97 (4) 0/33 (0) 4/130 (3) X2=1.69; df=2;
p=.430
10-40K 21/97 (22) 6/33 (18) 27/130 (21)
40K + 72/97 (79) 27/33 (82) 99/130 (76)
Ethnicity
(% Caucasian)
89/101 (88) 26/34 (77) 115/135 (85) X2=2.74; df=1;
p=.098
Handedness (%)
Right 84/100 (84) 33/35 (94) 117/135 (87) X2=2.39; df=2;
p=.303
Left 7/100 (7) 1/35 (3) 8/135 (6)
Ambidextrous 9/100 (9) 1/35 (3) 10/135 (7)
Conner’s Total Baseline Parent (SD) 72.37 (10.89) 48.09 (5.16) 66.03 (14.45) F1,133=160.77;
p=.000
Conner’s Total Baseline Teacher (SD) 66.87 (11.56) N/A N/A N/A
CBCL Total T-Score (SD) 67.70 (7.52) 44.15 (8.78) 61.71 (12.93) F1,133=228.10;
p=.000
DISC Total ADHD items (SD) 12.92 (3.32) 1.71 (1.92) 10.01 (5.78) F1,134=355.34;
p=.000

Bold indicates significant statistical difference between ADHD and control groups.