Association between population prevalence of smoking and incidence of meningococcal disease in Norway, Sweden, Denmark and the Netherlands between 1975 and 2009: a population-based time series analysis.
OBJECTIVE: To investigate the relationship between the prevalence of smoking in the population and incidence of invasive meningococcal disease (IMD) among children under 5 years of age. DESIGN: Retrospective, longitudinal, observational study. Poisson regression controlled for confounding factors. SETTING: Norway, Sweden, Denmark and the Netherlands between 1975 and 2009. POPULATION: Total population of approximately 35 million people in these four countries. DATA SOURCES: Data were collected...Expand abstract
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