Standardised mortality index


Dernière mise à jour le :13/10/2016


The standardised mortality index (SMI) is calculated, for a given group, as the ratio of the number of deaths actually observed over a given period and the number of deaths that would have occurred over the same period if the group had been subject to the same age-specific mortality as the population as a whole. A ratio of more than 1 is interpreted as excess mortality in the group.