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Preterm delivery among people living around Portland cement plants
Chun-Yuh Yang1, Chih-Ching Chang, Shang-Shyue Tsai
1Institute of Public Health, Kaohsiung Medical University, 100 Shih-Chuan 1st RD, 80708, Kaohsiung, Taiwan, ROC. chunyuh@cc.kmu.edu.tw <chunyuh@cc.kmu.edu.tw>
Abstract:
The Portland cement industry is the main source of particulate air pollution in Kaohsiung city. Data in this study concern outdoor air pollution and the health of individuals living in communities in close proximity to Portland cement plants. The prevalence of delivery of preterm birth infants was significantly higher in mothers living within 0-2 km of a Portland cement plant than in mothers living within 2-4 km. After controlling for several possible confounders (including maternal age, season, marital status, maternal education, and infant sex), the adjusted odds ratio was 1.30 (95% CI=1.09-1.54) for the delivery of preterm infants for mothers living close to the Portland cement plants, chosen at the start to be from 0 to 2 km. These data provide further support for the hypothesis that air pollution can affect the outcome of pregnancy.