Exposure to cooking fuels and birth weight in Lanzhou, China: a birth cohort study
نویسندگان
چکیده
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.
منابع مشابه
Passive smoking and preterm birth in urban China.
Studies investigating the relationship between maternal passive smoking and the risk of preterm birth have reached inconsistent conclusions. A birth cohort study that included 10,095 nonsmoking women who delivered a singleton live birth was carried out in Lanzhou, China, between 2010 and 2012. Exposure to passive smoking during pregnancy was associated with an increased risk of very preterm bir...
متن کاملMaternal exposure to biomass smoke and reduced birth weight in Zimbabwe.
PURPOSE To examine the association between household use of biomass fuels for cooking and birth weight. METHODS Analysis is based on 3559 childbirths in the 5 years preceding the 1999 Zimbabwe Demographic and Health Survey. Birth weights, recorded by trained professionals at local health clinics, were derived from health cards at home or from mother's recall. Multiple regression method was us...
متن کاملEvaluation of the Relative Frequency of Attention Deficit Hyperactivity Disorder (ADHD) in 6-Year-Old Children with Low Birth Weight in Yazd
Introduction: ADHD (attention deficit hyperactivity disorder) is a neuro-behavioral syndrome that is characterized by a lack of attention, irritability, high activity, distressed behaviors, especially in boys. Materials and Methods: A cohort study was conducted on 120 children aged 6 years. 60 children with low birth weight (less than 2500 g) as exposed group and 60 children with birth weight m...
متن کاملPre-pregnancy BMI, gestational weight gain and risk of preeclampsia: a birth cohort study in Lanzhou, China
BACKGROUND To evaluate the independent and joint effects of maternal pre-pregnancy BMI and gestational weight gain (GWG) on the risk of preeclampsia and its subtypes. METHODS A birth cohort study was conducted from 2010 to 2012 in Lanzhou, China. Three hundred fourty seven pregnant women with preeclampsia and 9516 normotensive women at Gansu Provincial Maternity and Child Care Hospital were i...
متن کاملMaternal tea consumption and the risk of preterm delivery in urban China: a birth cohort study
BACKGROUND Studies investigating the relationship between maternal tea drinking and risk of preterm birth have reached inconsistent results. METHODS The present study analyzed data from a birth cohort study including 10,179 women who delivered a singleton live birth were conducted in Lanzhou, China between 2010 and 2012. RESULTS Drinking tea (OR = 1.36, 95 % CI: 1.09-1.69), and specifically...
متن کامل