Associations of average arsenic exposure at first year of residence (AsI) and mortality for specific causes (HR, 95% Confidence Intervals, 95% CI) in the study, 1990–2010.

a Person time of exposure of individual study subjects in the three AsI exposure categories: Males: AsI ≤10 μg/L: n = 379,421; AsI = 10–20 μg/L: n = 350,192; AsI≥20 μg/L: n = 442,993; Females: AsI ≤10 μg/L: n = 392,439; AsI = 10–20 μg/L: n = 363,084; AsI≥20 μg/L: n = 461,136b HR: Hazard Ratios and 95%CI calculated respect to As≤10 μg/L as reference group; significant HR and p-values for trend highlighted in boldc Models adjusted for age, calendar period, socioeconomic level, occupation in the ceramic industry, smoking sales and radon exposureAssociations of average arsenic exposure at first year of residence (AsI) and mortality for specific causes (HR, 95% Confidence Intervals, 95% CI) in the study, 1990–2010.