Table 2

Correlations between total scores on the diagnostic screens
Mean (SD) (N) Barkley ADHD adult total Barkley current impairment score LDSQ percentage score Oregon CD total
Barkley ADHD child total 21.9 (14.0) (196) 0.72** .55** -.35** .77**
Barkley ADHD adult total 17.3 (12.2) (196) - .79** -.34** .65**
Barkley current impairment score 8.2 (7.4) (195) - - -.23* .51**
LDSQ percentage score 78.5 (18.9) (195) - - - -.30**
Oregon CD total 13.3 (4.9) (194)

*P < .01.

**P < .001.

ADHD, Attention Deficit Hyperactivity Disorder; CD, Conduct disorder; LDSQ, Learning Disability Screening Questionnaire.

Young et al.

Young et al. BMC Medicine 2013 11:248   doi:10.1186/1741-7015-11-248

Open Data