Exposures to fine particulate matter (PM2.5) and birthweight in a rural urban, mother-child cohort in Tamil Nadu, India

被引:86
|
作者
Balakrishnan, Kalpana [1 ]
Ghosh, Santu [1 ,2 ]
Thangavel, Gurusamy [1 ]
Sambandam, Sankar [1 ]
Mukhopadhyay, Krishnendu [1 ]
Puttaswamy, Naveen [1 ]
Sadasivam, Arulselvan [1 ]
Ramaswamy, Padmavathi [1 ,3 ]
Johnson, Priscilla [1 ,3 ]
Kuppuswamy, Rajarajeswari [1 ]
Natesan, Durairaj [1 ]
Maheshwari, Uma [1 ]
Natarajan, Amudha [1 ]
Rajendran, Gayathri [1 ]
Ramasami, Rengaraj [1 ]
Madhav, Sathish [1 ]
Manivannan, Saraswathy [1 ]
Nargunanadan, Srinivasan [1 ]
Natarajan, Srinivasan [1 ]
Saidam, Sudhakar [1 ]
Chakraborty, Moumita [1 ]
Balakrishnan, Lingeswari [1 ]
Thanasekaraan, Vijayalakshmi [1 ]
机构
[1] Sri Ramachandra Univ, SRU ICMR Ctr Adv Res Air Qual Climate & Hlth, Madras, Tamil Nadu, India
[2] St Johns Med Coll, Dept Biostat, Bangalore, Karnataka, India
[3] Sri Ramachandra Univ, Dept Physiol, Madras 600116, Tamil Nadu, India
关键词
PM2.5; Birthweight; Exposure-response; Ambient air pollution; Household air pollution; India; AMBIENT AIR-POLLUTION; PREGNANCY OUTCOMES; PRETERM BIRTH; GLOBAL BURDEN; FUEL USE; DISEASE; RISK; HOUSEHOLD; HEALTH; COMBUSTION;
D O I
10.1016/j.envres.2017.11.050
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Background: Exposure to PM2.5 (fine particulate matter < less than 2.5 mu m in aerodynamic diameter) related to ambient and household air pollution has been associated with low birthweight. Few of these studies, however, have been conducted in high exposure settings that are commonly encountered in low and middle income countries (LMICs). Objectives: We examined whether PM2.5 exposures during pregnancy were associated with birthweight in an integrated rural-urban, mother-child cohort in the state of Tamil Nadu, India. Methods: We recruited 1285 pregnant women in the first trimester of pregnancy from primary health care centers and urban health posts and followed them until birth to collect antenatal care data and birthweight. We estimated pregnancy period PM2.5 exposures through direct serial measurements of 24-h household PM2.5 concentrations, performed across each trimester. Mothers also completed detailed questionnaires to provide data on covariates related to household, socio-economic, demographic and maternal health characteristics. The association between PM2.5 exposures and birth weight was assessed using linear and logistic regression models that controlled for potential confounders. Results: A 10-mu g/m(3) increase in pregnancy period PM2.5 exposures was associated with a 4 g (95% CI: 1.08 g, 6.76 g) decrease in birthweight and 2% increase in prevalence of low birthweight [odds ratio(OR) = 1.02; 95%C1:1.005,1.041] after adjusting for gestational age, infant sex, maternal BMI, maternal age, history of a previous low birth weight child, birth order and season of conception. Conclusions: The study provides some of the first quantitative effects estimates for linking rural-urban PM2.5 exposures and birthweight in India, adding important evidence for this association from high exposure settings in LMICs, that also experience dual health burdens from ambient and household air pollution. Study results also point to the need for considering maternal PM2.5 exposures alongside other risk factors for low birthweight in India.
引用
收藏
页码:524 / 531
页数:8
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