Deaths due to asthma (ICD-10 codes J45-J46).
Single-year rates are calculated based on the resident population of the data year involved. For census years, April 1 census counts are used (e.g. 2000). For postcensal years, July 1 estimates from the postcensal Vintage that matches the data year are used (e.g. July 1, 2004 resident population estimates from Vintage 2004 are used to calculate rates for 2004). For intercensal years, intercensal population estimates are used in rate calculations (e.g. 1991-1999). Population estimates for 1991 and later have bridged-race categories.