Exposure to cooking fuels and birth weight

Research studies on wood smoke and other air pollution.

Exposure to cooking fuels and birth weight

Postby Wilberforce » Mon Jul 27, 2015 5:58 pm

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Exposure to cooking fuels and birth weight in Lanzhou, China: a birth cohort study
Jiang et al
http://www.biomedcentral.com/1471-2458/15/712/abstract
Abstract
Background
Early studies have suggested that biomass cooking fuels were associated with increased risk of low birth weight (LBW). However it is unclear if this reduced birth weight was due to prematurity or intrauterine growth restriction (IUGR).

Methods
In order to understand the relationship between various cooking fuels and risk of LBW and small for gestational age (SGA), we analyzed data from a birth cohort study conducted in Lanzhou, China which included 9,895 singleton live births.

Results
Compared to mothers using gas as cooking fuel, significant reductions in birth weight were observed for mothers using coal (weight difference?=?73.31 g, 95 % CI: 26.86, 119.77) and biomass (weight difference?=?87.84 g, 95 % CI: 10.76, 164.46). Using biomass as cooking fuel was associated with more than two-fold increased risk of LBW (OR?=?2.51, 95 % CI: 1.26, 5.01), and the risk was mainly seen among preterm births (OR?=?3.43, 95 % CI: 1.21, 9.74). No significant associations with LBW were observed among mothers using coal or electromagnetic stoves for cooking.

Conclusions
These findings suggest that exposure to biomass during pregnancy is associated with risk of LBW, and the effect of biomass on LBW may be primarily due to prematurity rather than IUGR.
• The Surgeon General has determined that there is no safe level of exposure to ambient smoke!

• If you smell even a subtle odor of smoke, you are being exposed to poisonous and carcinogenic chemical compounds!

• Even a brief exposure to smoke raises blood pressure, (no matter what your state of health) and can cause blood clotting, stroke, or heart attack in vulnerable people. Even children experience elevated blood pressure when exposed to smoke!

• Since smoke drastically weakens the lungs' immune system, avoiding smoke is one of the best ways to prevent colds, flu, bronchitis, or risk of an even more serious respiratory illness, such as pneumonia or tuberculosis! Does your child have the flu? Chances are they have been exposed to ambient smoke!
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