Table 1.
Demographic and clinical characteristics of children with attention-deficit/hyperactivity disorder and controls.
| Variables | ADHD (n = 80) |
Controls (n = 81) |
z/x2 | p |
|---|---|---|---|---|
| Age, years | 11.15±3.09 | 11.62±3.21 | -0.908a | 0.364 |
| Sex, male/female | 56/24 | 47/34 | 2.504b | 0.114 |
| BMI percentile | 64.9±29.7 | 60.6±33.7 | -0.490a | 0.624 |
| Mother education, years | 9.0±3.7 | 8.9±4.3 | -0.378a | 0.706 |
| Father education, years | 10.5±3.7 | 10.5±4.3 | -0.050a | 0.960 |
| CPRS-SV Oppositional Tendencies | 8.8±4.9 | – | – | – |
| CPRS-SV Cognitive Problems/Inattention | 10.8±4.6 | – | – | – |
| CPRS-SV Hyperactivity | 7.5±4.8 | – | – | – |
| CPRS-SV ADHD Index | 20.7±7.5 | – | – | – |
ADHD, attention-deficit hyperactivity disorder; BMI, body-mass index; CPRS-SV, Conners’ Parent Rating Scale-Short Version (Revised).
a
Mann-Whitney U test.
b
Chi square test.