Trends of myocardial infarction morbidity and its associations with weather conditions

The aim of this study was to assess the trends of myocardial infarction (MI) morbidity and evaluate the associations with some meteorological factors. Data on MI morbidity were collected from Kaunas ischemic heart disease registry and information about meteorological factors from Kaunas meteorological station was collected. The overall morbidity rates of acute MI among men aged 25–64 increased by 2.0%/yr. (P=0.02), whereas among women did not change significantly (+1.2%/yr., P=0.2) during 1995–2007. Among men aged 65–84 the overall morbidity rates of MI were without significant changes (−1.0%/yr., P=0.3) and among women decreased significantly by −1.7%/yr. (P=0.03). During 1995–2000, a weak inverse significant correlation between atmospheric air temperature and morbidity of MI (r=−0.05, P=0.019) was documented (in women and the elderly r=−0.045 and −0.048, respectively, P