Interaction between lead and noradrenergic genotypes affects neurocognitive functions in attention-deficit/hyperactivity disorder: a case control study

Table 2 Correlation between Lead and Clinical Characteristics (n = 355)

	R	p-value
Age	−.122	.022^a
IQ	−.045	.403
Continuous Performance Test
Omission errors	.158	.003^a
Commission errors	.055	.304
Response time	.078	.151
Response time variability	.136	.010^a
ADHD Rating Scale
Inattention	.153	.004^a
Hyperactivity-impulsivity	.181	.001^a
Total	.173	.002^a
Stroop Color-Word Test
Word reading score	−.078	.157
Color naming score	−.057	.298
Color-Word score	−.013	.815
Interference score	.062	.272

Note: a: Items that are still significant after the multiple comparison adjustment with the 0.05 false discovery rate threshold which have a p-value <.05
ADHD attention-deficit/hyperactivity disorder, IQ intelligence quotient

ISSN: 1471-244X