Abdolmajid Fadaei, Hajar Ahmadi, Esmaeil Fatahpoor, Yasser Jalilpour, Morteza Ariyanfar, Davood Jalili Naghan,
Volume 21, Issue 4 (3-2024)
Abstract
Background and Aim: Air pollution has been widely established as an important risk factor for heart and respiratory diseases and mortality. The aim of this study was to compare the relationships between short-term exposure to air pollutants and hospital admissions, cardiovascular and respiratory deaths and total deaths in Ahvaz and Shahrekord, Iran.
Materials and Methods: In this ecological and time-series study data were collected on hospital admissions, cardiovascular and respiratory deaths and total deaths between 2012 and 2018. For data analysis Quasi-Poisson regression combined with linear distributed lag models were used and adjusted for trend, seasonality, temperature, relative humidity, weekdays and holidays.
Results: Data analysis showed that in Ahvaz there were statistically significant direct correlations between PM10 exposure and respiratory admissions, PM2.5 exposure and total deaths and cardiovascular admissions, O3 exposure and total deaths, and CO exposure and cardiovascular admissions. As regards Shahrekord, there were statistically significant direct correlations between PM10 exposure and respiratory deaths, PM10 exposure and cardiovascular deaths, PM2.5 exposure and cardiovascular and respiratory admissions and respiratory deaths, O3 exposure and total deaths, and CO exposure and respiratory deaths.
Conclusion: It seems there are statistically significant relationships between air pollution and hospital admissions and deaths in Ahvaz and, to a lesser extent, in Shahrekord.
