Trend of acute myocardial infarction prevalence toward younger ages in Ahvaz

The aim of this study was comparing the prevalence of ST elevation myocardial infarction in 1997 with the prevalence in 2010 considering age groups in the hospitals of Ahvaz Jundishapur University of Medical Sciences. We considered the patients admitted with acute coronary syndrome at hospitals of Ahvaz Jundishapur University of Medical Sciences and all the patients with ST elevation myocardial infarction were included. We categorized the patients into six groups according their ages. 400 patients in 1997 and 243 patients in 2010 were included in this study. The prevalence of myocardial infarction has increased in patients younger than 35 years. There were no significant changes in the group of 35-45 years and group of 65-75 years. The most important changes in age distribution of myocardial infarction during 2010 were prevalence increasing in age group of 46-55 years and decreasing in age group of 56-65 years. During 1997, 17% of patients were patients older than 75 years while 27% of patients were older than 75 years in 2010. Our data suggest that the prevalence of ST elevation myocardial infarction in age group of 46-55 years old has increased in Ahvaz. This change is especially prominent in male patients

Traffic noise as a serious effect on class teachers in Ahvaz city, Iran

Noise as an unwanted sound is unpleasant to listener. It can be physically, mentally, and physiologically harmful, and it interferes with important activities. Some studies show negative effects of aircraft noise on education procedures. We aimed to assess the impact of noise on the performance of teachers in classrooms, and on other educational activities. Method: We selected 384 class teachers by simple random sampling in primary, secondary, and high schools in Firoozabad City, Iran. We distributed the questionnaire to these class teachers and collected on the same day. The results showed that traffic noise was a significant factor that affected the teachers by reducing their teaching efficiency and by disturbing other educational procedures. Therefore, it needs more effective controls and more consideration in city planning