Incidence rate ratios (IRRs) of MI per 10 dB higher level of exposure to road traffic noise based on 50 614 cohort participants.

IRR, incidence rate ratio; CI, confidence interval; dB, decibel.aAdjusted for age, sex, smoking status, smoking duration, smoking intensity, intake of fruit, intake of vegetables, BMI, alcohol intake and physical activity, calendar year, education, railway and airport noise and residential exposure to NOx.