. Author manuscript; available in PMC: 2019 Jan 1.

Published in final edited form as: J Am Acad Dermatol. 2018 Jan;78(1):200–203. doi: 10.1016/j.jaad.2017.07.052

Table III.

Number of prescriptions obtained for psoriasis by race/ethnicity

Medical Expenditures Panel Surveys, 2001–2013, unweighted N = 842, weighted N = 1,676,778

	Mean per year (95% CI)	Unadjusted IRR (95% CI)	Adjusted IRR^a (95% CI)*
Overall	2.03 (1.85–2.22)	-	-
Race/ethnicity
Non-Hispanic white	2.07 (1.86–2.28)	Reference	Reference
Hispanic white	1.81 (1.43–2.18)	0.84 (0.63–1.13)	0.89 (0.64–1.24)
Non-Hispanic minority^b	1.86 (1.43–2.28)	0.88 (0.65–1.21)	0.90 (0.68–1.19)

Adjusted incidence rate ratios (IRR) and 95% confidence interval (95% CI) were calculated using negative binomial regression adjusting for age, sex, poverty level, census region, marital status (spouse in household), education level, and health insurance type, accounting for the duration of psoriasis follow-up

Non-Hispanic minority includes black, Asian/Native Hawaiian/Pacific Islander, American Indian/Alaskan Native, and multi-racial.