Table 3.—

Incremental Total Healthcare Expenditures Associated With Psychiatric Comorbidity Within the Headache and Non-Headache Cohorts, Adjusted For Covariates Specified in the Anderson Behavioral Model of Healthcare Use Reported in 2016 U.S. Dollars

	Incremental Adjusted Total Healthcare Expenditures Associated With Psychiatric Comorbidity
	Headache Cohort			Non-Headache Cohort
Psychiatric Comorbidity	$	95% CI	P Value	$	95% CI	P Value
Anxiety	1353	[−1137,3845]	.285	949	[336,1513]	.002
Depression	1815	[676,2953]	.002	1409	[697,2122]	<.0001
ADHD	4742	[1659,7825]	.003	2935	[1977,3894]	<.0001

For all analyses, dollar amounts were adjusted for inflation to reflect 2016 dollar costs using the consumer price index medical care inflation component. Incremental expenditures were estimated using regression models adjusted for age group, sex, race/ethnicity, mother’s education, income category, insurance, geographical region of the United States, usual source of healthcare, perceived mental health, and perceived physical health.

Source: MEPS 2012–2015.