IA / county disease rankings

Counties with the highest thyroid cancer incidence rates in Iowa

Among 39 Iowa counties with published values, the counties with the highest thyroid cancer incidence rates are Jones County, IA (24.3, 1.87 times the U.S. rate of 13), Benton County, IA (23.9, 1.84 times the U.S. rate of 13) and Crawford County, IA (22.7, 1.75 times the U.S. rate of 13). Values are per 100,000, age-adjusted. 6 of the 39 are significantly above the U.S. rate.

Source: NCI and CDC State Cancer Profiles, both sexes, all ages. These are county-level figures, age-adjusted as published by the source, compared with the U.S. rate. A high rate does not prove an environmental cause: age, smoking, income, access to care, screening and chance all move county rates, and small counties swing widely. Significant means the lower bound of the county’s 95 percent confidence interval is above the U.S. rate.