TABLE 2.

Neuropsychological maturity test average centile scores for attention.

	Attention
	Pre-intervention, median [IQR]	Post-intervention, median [IQR]	Effect size (within group)	P value
Control	27.50 [15.00–35.00]	17.50 [15.00–23.75]	−0.58	0.027
OMT	20.00 [5.00–35.00]	30.00 [20.00–43.75]	0.34	0.031

IQR, interquartile range; OMT, osteopathic manipulative treatment.