Journal of Environmental Health and Sustainable Development

en The Impact of Ambient Air Pollutants on Birth Outcomes Using ARMA Model: Yazd Mother and Birth Cohort Study Human Ecology Original articles <div style="text-align: justify;">Introduction: The present study examines the association between ambient air pollution and harmful consequences at birth in Yazd, Iran during 2017-2020. Materials and Methods: This time series study by the autoregressive (AR) and moving average (MA) or ARMA model was conducted in Yazd, Iran. Birth information including fetal sex, birth weight, birth height, and head circumference as well as preterm birth (PTB) and abortion was collected from mother and birth cohort databases. Data on air pollutants concentrations in the corresponding gestational period were obtained from fixed air monitors of Yazd Municipal Environmental Monitoring Center. The time series model statistical test was performed to find the relation between ambient air pollution and harmful consequences at birth. Results: 2131 singleton live births were monitored for 3 years. In ARMA models, the ratio of girl births to total births (Coef: 7.943, 95% CI: 2.797, 13.089), preterm delivery (Coef: 2.915, 95% CI: 0.224, 5.606), and spontaneous abortion (Coef: 44.751, 95% CI: 26.872, 62.629) was associated with NO2 exposure. Distributed mismatch models also suggested associations between the Air Quality Index (AQI) in pregnant women with a sex-premature birth relationship (Coef: 0.001, 95% CI: 0.000, 0.001). Conclusion: Exposure to air pollution, even at low levels, may increase the risk of sex ratio in singletons, premature birth, and spontaneous abortion. However, the results of the present study could not definitively show the relationship between air quality and other birth problems. More research studies are required to investigate the present findings.</div> Air Pollution,Health Impact Assessment, Pregnancy Outcomes, Time Series, Cohort Studies. 2050 2061 http://jehsd.ssu.ac.ir/browse.php?a_code=A-10-97-3&slc_lang=en&sid=1 Seyedeh Mahtab Pormazar 0000-0002-8017-7505 No Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. Mohadese i Dehghan Banadak 0009-0000-8584-6854 No Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. Sara Jambarsang 0000-0002-8295-7812 No Departments of Biostatistics and Epidemiology, School of Public Health, Center for Healthcare Data Modeling, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. Mohammad Hassan Ehrampoush 0000-0002-0388-3211 No Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. Amir Hoshang Mehrparvour 0000-0002-7319-3750 No Industrial Diseases Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. Fahimeh Nakhostin 0000-0002-2181-9010 No Department of Obstetrics and Gynecology, Faculty of Medicine, Shahid Sadughi University of Medical Sciences, Yazd, Iran. Fahimeh Teimouri f.teimouri@ssu.ac.ir 0000-0001-9097-6493 Yes Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.