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This study analyzes the proportional mortality for lung cancer by occupation in the Mexican states of Jalisco, Nuevo León and Federal District (Mexico City) from 2002-2005.
Methods
This study uses mortality data. Lung cancer deaths in the states of Distrito Federal (Mexico City), Nuevo Leon and Jalisco was obtained from the mortality data published by the Department of Health (SSA). These states have a good ascertainment of cause of mortality. Studied subjects were grouped in: professionals and managers, army and security agencies, industrial technicians, workers from the agriculture, industry, service and rade sectors, and transport). To observe the proportion of deaths from lung cancer from all deaths, the Proportional Mortality Rate (PMR) of lung cancer by state, occupation and sex was calculated.
Results
By occupation the highest lung cancer PMR was observed in professionals and managers (2.8), followed by industrial technicians (2.3), and industrial and agricultural workers (2.0 and 1.9). Among men, PMRs was higher for professionals, industrial technicians and industrial workers (1.7 and 1.3). In women, PMRs were higher for professionals and industrial technicians (1.9 and 1.3). Lung cancer PMR was higher in Jalisco (1.93) than in México City (1.56) and Nuevo León (0.03). In Nuevo León, PMRs for professionals, agricultural and industrial workers were the higher (6.1, 6.63 and 4.26). In México City, the agricultural workers, professionals and technicians had the higher PMRs (3.7, 3.1 and 2.6), and in Jalisco, the agricultural workers, professionals and industrial workers did (PMR=6.6, 6.1 and 4.3).
Discussion
Based in the study´s results we can state that in Mexico, the frequency and probability of presentation of lung cancer in Mexico is different depending on the individual's occupation. It is important to include the occupation in the mortality analysis, to identify those occupational groups with a higher risk of developing this type of cancer.