Air pollution and low birth weight: a historical cohort study from Tehran.
This historical cohort study was designed to clarify the association between air pollution and low birth weight (LBW) amongst women referred to Tehran hospitals in 2007. In total, 225 eligible pregnant women who lived within 5 km of an air pollution monitoring station during their pregnancy were selected for the study. Data were collected via interview and hospital records. Exposure to each pollutant was estimated for each woman individually throughout her pregnancy and for each trimester. Exposures were modelled as categorical variables using inter-quartile ranges in a logistic regression model. The results showed a significant association between exposure to CO and LBW (OR = 2.08, 95% Cl: 1.70-4.60), particularly during the second trimester (OR = 3.96, Cl: 1.83-12.5). We conclude that exposure to air pollution during pregnancy may be associated with LBW.
Faculty of Nursinq and Midwifery, Shaheed Beheshti University of Medical Science, Tehran, Islamic Republic of Iran.
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M
Araban
N
N
Kariman
S S
SS
Tavafian
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S
Motesaddi
H
H
Alavimajd
F Amin
FA
Shokravi
D000328:Adult; D000393:Air Pollutants / Q000633:toxicity*; D016009:Chi-Square Distribution; D015331:Cohort Studies; D004784:Environmental Monitoring; D005260:Female; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007492:Iran; D016015:Logistic Models; D018811:Maternal Exposure / Q000009:adverse effects*; D011247:Pregnancy; D012307:Risk Factors
D000393:Air Pollutants