Table 3.

Association between IED frequency and level of cognitive function.

variable	Coeff.	SE	t	95% CI	p
MENTAL PROCESSING SCALE
Condition (ASD = 1/TD = 0)	−10.8	2.3	−4.6	−15.4 to −6.2	< 0.05
IED frequency (/10 s)	−7.7	1.5	−5.3	−10.6 to −4.9	< 0.05
Condition × IED frequency	14.0	2.9	4.8	8.2 to 19.7	< 0.05
ACHIEVEMENT SCALE
Condition (ASD = 1/TD = 0)	−9.6	2.3	4.1	−14.2 to −4.9	< 0.05
IED frequency (/10 s)	−2.1	3.0	−0.7	−8.1 to 3.8	0.48
Condition × IED frequency	4.0	4.9	0.8	−5.6 to 13.7	0.41

Coef., regression coefficient; SE, robust standard error; CI, confidence interval; ASD, autism spectrum disorder; TD, typically developed controls.