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Trends in socioeconomic mortality inequalities in a southern European urban setting at the turn of the 21st century

¹ Agència de Salut Pública de Barcelona, Barcelona, Spain
² Universitat Pompeu Fabra, Spain
³ Center for Addictions and Mental Health, University of Toronto and Institute for Work and Health, Toronto, Canada

Correspondence to:
Carme Borrell, Agència de Salut Pública de Barcelona, Plaça Lesseps 1, 08023 Barcelona, Spain; cborrell{at}aspb.cat

Objective: To analyse trends in mortality inequalities by educational level for main causes of death among men and women in Barcelona, Spain, at the turn of the 21st century (1992–2003).

Methods: The population of reference was all Barcelona residents older than 19 years. All deaths between 1992–2003 were included. Educational level was obtained through record linkage between the mortality register and the municipal census of Barcelona city. Variables studied were age, sex, educational level, period of death (four periods of 3 years) and cause of death. Age-standardised mortality rates for each educational level, sex and period were calculated. Poisson regression models were fitted to obtain relative index of inequality (RII) for educational level, adjusted for age for the time-periods.

Results: RII for all causes of death was constant (around 1.5), but rate differences were higher in 1995–7 (715.6 per 100 000 in men and 352.8 in women) than in other periods and tended to decrease in men over the periods. Analysis of inequality trends by specific causes of death shows a stable trend for the majority of causes, with higher mortality among those with less education for all causes of death except lung cancer and breast cancer among women having RII below 1.

Conclusions: Relative inequalities in total mortality by sex in Barcelona did not change during the 12 years studied, whereas absolute inequalities tended to decrease in men. Our study fills an important gap in southern Europe and Spanish literature on trends during this period.