Table 4.

Modeling of Total Health Care Costs per Child with ASD

Variable	Unadjusted mean		Adjusted analysis
	Unadjusted mean	p-value	mean	p-value
Gender		<0.0001		<0.0001
Male	$22,258		$19,565
Female	$20,213		$18,138
Urban		<0.0001		<0.0001
Yes	$21,504		$18,620
No	$18,738		$17,665
Age ( by quartile)		<0.0001		<0.0001
Q1 (0-6 years)	$14,389		$14,456
Q2 (7-9 years)	$17,132		$15,520
Q3 (10-13 years)	$20,140		$18,292
Q4 (13-17 years)	$28,759		$25,708
Log(median income)		<0.0001		<0.0001
Q1 (<$37,720)	$17,874		$15,752
Q2 [$37,720,$42,723]	$17,854		$16,257
Q3 [$42,723, $48,297]	$23,514		$21,032
Q4 (≥$48,297)	$23,648		$21,746
Insurance type * % white		<0.0001		<0.0001
Medicaid
Q1 of % White (<65%)	$20,103		$18,724
Q2 of % White [65%-80%)	$22,687		$21,564
Q3 of % White [80%-93%)	$23,960		$22,526
Q4 of % White (≥93%)	$23,880		$23,923
Private Insurance
Q1 of % White (<65%)	$5,059		$5,662
Q2 of % White [65%-80%)	$5,102		$5,600
Q3 of % White [80%-93%)	$5,735		$5,747
Q4 of % White (≥93%)	$4,914		$5,019