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Interaction of Air Pollutants and Meteorological Factors on Birth Weight in Shenzhen, China
- Source :
- Epidemiology. 30:S57-S66
- Publication Year :
- 2019
- Publisher :
- Ovid Technologies (Wolters Kluwer Health), 2019.
-
Abstract
- This study aimed to assess if air pollutants and meteorological factors synergistically affect birth outcomes in Shenzhen, China.A total of 1,206,158 singleton live births between 2005 and 2012 were identified from a birth registry database. Daily average measurements of particulate matter ≤10 µm (PM10), sulfur dioxide (SO2), nitrogen dioxide (NO2), ambient air temperature (T), and dew point temperature (Td), a marker of humidity, were collected. Multivariable logistic regression models were used to evaluate associations between air pollution and small for gestational age (SGA), and full-term low birth weight (TLBW). We classified births into those conceived in the warm (May-October) and cold seasons (November-April) and then estimated interactions between air pollutants and meteorological factors.An interquartile range (IQR) increase in PM10 exposure during the first trimester (23.1 µg/m) and NO2 during both the first and second trimesters (15.1 and 13.4 µg/m) was associated with SGA and TLBW risk; odds ratios ranged from 1.01 (95% confidence interval [CI] = 1.00, 1.02) to 1.09 (1.07, 1.12). We observed interactive effects of both air temperature and humidity on PM10 and SGA for newborns conceived in the warm season. Each IQR increase in PM10 (11.1 µg/m) increased SGA risk by 90% (95% CI = 19%, 205%), 29% (23, 34%), 61% (10, 38%), and 26% (21, 32%) when T5th percentile, 5thT95th percentile, Td5th percentile, and 5thTd95th percentile, respectively.Our study found evidence of an interactive effect of air temperature and humidity on the relationship between PM10 exposure and SGA among newborns conceived in the warm season (May-October). Relatively low air temperature or humidity exacerbated the effects of PM10.
- Subjects :
- Adult
Male
China
Epidemiology
Birth weight
Nitrogen Dioxide
Air pollution
Gestational Age
medicine.disease_cause
01 natural sciences
010104 statistics & probability
03 medical and health sciences
0302 clinical medicine
Animal science
Interquartile range
Birth Weight
Humans
Sulfur Dioxide
Medicine
Registries
030212 general & internal medicine
0101 mathematics
Weather
Air Pollutants
business.industry
Infant, Newborn
Temperature
Humidity
medicine.disease
Confidence interval
Low birth weight
Dew point
Small for gestational age
Female
Particulate Matter
medicine.symptom
business
Maternal Age
Subjects
Details
- ISSN :
- 10443983
- Volume :
- 30
- Database :
- OpenAIRE
- Journal :
- Epidemiology
- Accession number :
- edsair.doi.dedup.....a043912a8f51b616a4128662580c87e5