[Asthma mortality in the city of São Paulo, Brazil].

Objective: To quantify and compare asthma mortality rates as the main cause of death, taking into consideration the following variables: sex, age and seasonality.

Methods: Data was collected from all death certificates coded 493 of people aged 5 to 34 years in the periods of 1983-5 and 1993-5 in the city of São Paulo, SP, Brazil. Data analysis was performed by directly comparing death rates and identifying the odds ratio trend and directly comparing the numbers of asthma deaths.