Figure 2. Inpatient Inferior Vena Cava Filter Placement Rates per 100 000 Hospital Discharges .

Data from 2014 US Census Division. New England: Connecticut, Maine, Massachusetts, New Hampshire,^a Rhode Island, and Vermont. Mid-Atlantic: New Jersey, New York, and Pennsylvania. South Atlantic: Delaware,^a District of Columbia, Florida, Georgia, Maryland, North Carolina, South Carolina, Virginia, and West Virginia. East North Central: Illinois, Indiana, Michigan, Ohio, and Wisconsin. West North Central: Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, and South Dakota. East South Central: Alabama,^a Kentucky, Mississippi,^a and Tennessee. West South Central: Arkansas, Louisiana, and Oklahoma, and Texas. Mountain: Arizona, Colorado, Idaho,^a Montana, Nevada, New Mexico, Utah, and Wyoming. Pacific: Alaska,^a California, Hawaii, Oregon, and Washington.

^aDid not contribute 2014 data.