Research On The Relationship Between The Meteorological Factors In The Urumqi Region And The Morbidity Of Acute Myocardial Infarction

Objective: To explore the influence of meteorological factors on the morbidity of AMI and observe the seasonal and monthly distributions of AMI morbidity in the Urumqi region.Methods: This study recruited 2,224 patients who were hospitalized for AMI(1,771 males,453 females;60.76±12.89 years),and incorporated the meteorological data of the current day,the previous day and the previous 2 days.A frequent day for AMI was defined as a day on which the number of AMI cases was?3,while days with<3 AMI cases were defined as non-frequent days.Seasonal and monthly distribution patterns of the number of AMI cases were analysed.Results: There were 239(13.1%)frequent AMI days and 1,587(86.9%)non-frequent days.The influence of meteorological factors on AMI frequency was significant in males and hypertension patients.The results of multiple logistic regression model showed that the temperature change by 5°C during the 48 hours preceding frequent AMI day increased the risk of AMI frequency by 1.498 times(OR: 1.498,95% CI: 1.037-2.164,p=0.031),and the temperature decreased by 5°C during the preceding 2 days or the previous day,the risk increased by 1.691(OR: 1.691,95% CI: 1.102-2.596,p=0.016)or 1.524(OR: 1.524,95%CI: 1.004-2.315,p=0.048)times.Conclusions: Short-term temperature variation is related for AMI frequency.The frequency in spring and autumn was higher than that in summer and winter.