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American Journal of Epidemiology Vol. 143, No. 8: 792-796
Copyright © 1996 by The Johns Hopkins University School of Hygiene and Public Health

research-article

Prospective Study of Noise Exposure During Pregnancy on Birth Weight

Trong-Neng Wu1,, Li-Jen Chen2, Jim-Shoung Lai3, Guey-Nu Ko2, Chen-Yang Shen4 and Po-Ya Chang2

1Disease Surveillance and Quarantlne Service, Department of Health, Taipei Taiwan, ROC
2Department of Health Taipei, Taiwan, ROC
3The Chinese Medical College Taichong, Taiwan
4Institute of Biomedical Sciences, Academla Sinica, Taipei Taiwan, ROC

Reprint requests to Dr. Trong-Neng Wu, Director, Disease Surveillance and Quarantine Service, Department of Health, The Executive Yuan6, No. 6, Lin-Shen South Road, Taipei, Taiwan, ROC.

To examine the effect of noise exposure during pregnancy on infant birth weight, a well-characterized cohort of 200 pregnant women in the first trimester participating in prenatal care clinics was followed thoroughout gestation (in Taiwan, 1991). Individual 24-hour noise exposure of all women was prospectively measured, and information regarding possible noise exposure from traffic and occupation was also obtained. Noise exposure during pregnancy was correlated with the birth weights of the women's babies. No association between personal noise exposure measured in decibels (less than 85 dBALeq during pregnancy) and birth weight was found. Possible occupational noise exposure (indicated by working in a manual job), traffic noise exposure (indicated by distance between the home and main streets), and a history of listening to amplified music and using personal listening devices during pregnancy also showed no effect on infant birth weight. Maternal weight, maternal weight gained during pregnancy, gestational age, and infant's sex were the four factors that correlated significantly with birth weight. The noise exposure experienced by women during pregnancy may not be great enough to affect their infants' birth weight.Am J Epidemiol 1996; 143: 792–6.

birth weight; noise


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