Table 2. Improved estimates for four-year neuropsychological outcomes in children with isolated congenital heart defects.

Domain	Test	Score, Mean ± SD	Not excluding all geneticsyndromes (n = 381)	Excluding all (likely)genetic syndromes(n = 316)
Social Skills	CBCL/1.5-5 PDPs	54.6±7.21	15%	9.5%
	CBCL/1.5-5 withdrawn	54.5±6.76	11%	8.5%
Attention	ADHD Rating Scale-IV Inattention	5.83±5.00	30%	24.7%
	CBCL/1.5-5 attention problems	53.8±6.10	12%	7.9%
	ADHD Rating Scale-IV Hyperactivity	6.84±5.20	22%	21.5%
Behavior	CBCL/1.5-5 total problems	47.7±11.15	18%	15.2%
	CBCL/1.5-5 internalizing problems	48.7±11.27	22%	19.3%

Abbreviations. SD  =  standard error. ADHD  =  attention deficit/hyperactivity disorder. CBCL  =  Child Behavior Checklist for ages 1.5 to 5 years. PDPs  =  pervasive developmental problems.