MT / county disease rankings

Counties with the highest leukemia incidence rates in Montana

Among 14 Montana counties with published values, the counties with the highest leukemia incidence rates are Sanders County, MT (24.6, 1.7 times the U.S. rate of 14.5), Lewis and Clark County, MT (19.8, 1.37 times the U.S. rate of 14.5) and Yellowstone County, MT (19.4, 1.34 times the U.S. rate of 14.5). Values are per 100,000, age-adjusted. 3 of the 14 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.