Ibermutuamur (Mutua de Accidentes de Trabajo y Enfermedades Profesionales de la Seguridad Social 274), Madrid, Spain. miguelangelsanchez@ibermutuamur.es
OBJECTIVE: To investigate the prevalence of metabolic syndrome in the Spanish working population and determine how the prevalence varies according to occupation and sex. RESEARCH DESIGN AND METHODS: This was a cross-sectional study of 259,014 workers (mean age 36.4 years, range [16-74]; 72.9% male) who underwent a routine medical checkup. The Adult Treatment Panel III (2001) definition for metabolic syndrome was used. RESULTS: The prevalence of metabolic syndrome was 11.6% (95% CI 11.5-11.7) in male subjects and 4.1% (4.0-4.2) in female subjects and increased with age. The prevalence of metabolic syndrome varied in the different categories of occupational activity depending on the sex considered. Among female subjects, the age-adjusted prevalence of metabolic syndrome was higher in blue-collar than in white-collar workers, but this difference was not evident among male workers. CONCLUSIONS: The prevalence of metabolic syndrome varies in the different categories of occupational activity in the Spanish working population. This variation also depends on sex.