One-month mortality (%) for AML patients, by year of diagnosis and location, SEER 9 Registries, 1973–2010. Rate of early death was determined in each location during earliest time period (1973–1978). Statistics for high early death location, R2 = 0.7626 and β = −2.1482; for intermediate early death locations, R2 = 0.923 and β = −1.6536; for low early death location, R2 = 0.4381 and β = −0.7434.