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It is unknown which U.S. Census region offers the best access to health care resources.

To compare health care resource use and costs for patients with psoriasis among the 4 U.S. Census regions.

Cross-sectional study using the 1996-2015 Medical Expenditure Panel Survey.

In the United States the greatest access for biologic medications was in the South (9.1% receiving biologic medications/year), followed by the Northeast (7.4%), the West (6.8%), and the Midwest (5.2%). Ambulatory visits per patient per year were highest in the West (5.02), followed by the Northeast (3.81), the South (2.95), and the Midwest (2.84). The proportion of patients with ≥1 emergency department (ED) visits was highest in the Northeast (2.73%), followed by the West (2.17%), the South (1.19%), and the Midwest (1.17%). Compared with the remainder of the country, the West incurred the lowest total …