Particulate Air Pollution and Nonfatal Cardiac Events. Part 1: Air Pollution, Personal Activities, and Onset of Myocardial Infarction in a Case, Crossover Study. Part 2: Association of Air Pollution with Confirmed Arrhythmias Recorded by Implanted Def

摘要

We studied associations between air pollutants and onset of nonfatal myocardial infarction (MI) in 851 patients who had survived the first 24 hours after an MI and had completed a standard interview for the Coronary Event Registry in Augsburg, Germany; 691 patients provided case and control information for subject-specific MI triggers collected by a diary assessing the 4 days before symptom onset. Total number concentration (TNC) of particles--an indicator for ultrafine particles--and PM2.5 mass were the main exposures of interest. We conducted conditional logistic regression analyses using different control-selection strategies in a case-crossover approach and Poisson regression analysis of the time-series data.