{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,10]],"date-time":"2026-10-10T16:45:41Z","timestamp":1791650741946,"version":"4.3.4"},"reference-count":43,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2019,11,5]],"date-time":"2019-11-05T00:00:00Z","timestamp":1572912000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["81673184"],"award-info":[{"award-number":["81673184"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004826","name":"Natural Science Foundation of Beijing Municipality","doi-asserted-by":"publisher","award":["7192153"],"award-info":[{"award-number":["7192153"]}],"id":[{"id":"10.13039\/501100004826","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Pediatric Obesity"],"published-print":{"date-parts":[[2020,2]]},"abstract":"<jats:title>Summary<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Macrosomia is associated with both neonatal complications and adult diseases (obesity, diabetes mellitus, etc.). Previous studies have reported maternal exposure to PM2.5 might influence metabolism and fetal development and cause adverse pregnancy outcomes. Studies conducted in areas with low PM2.5 concentration have found relationship between gestational PM2.5 exposure and birth weight. However, the impact of air pollution on macrosomia has not been studied, especially in highly polluted areas.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objective<\/jats:title><jats:p>To evaluate the association between fine particulate matter (PM2.5) exposure during pregnancy and the risk of macrosomia.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Data from preconception health examination and prenatal and postnatal records were collected from 1 January 2010 to 31 December 2012 in the National Free Preconception Health Examination Project. Monthly mean of PM2.5 concentration during pregnancy was estimated from satellite data using an ensemble machine learning model. A newborn with birth weight above 4000\u00a0g was defined as macrosomia. Logistic regression models were used to examine the association between maternal exposure to PM2.5 and the risk of macrosomia, after adjusting for maternal age, pre\u2010pregnancy body mass index, parity, neonatal sex, duration of gestation, seasonality, educational level, smoking and drinking habits, past history of diabetes mellitus and hypertension, and family history of diabetes mellitus. Restricted cubic spline models were used to evaluate the dose\u2010response relationship between the risk of macrosomia and PM2.5 concentration.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Of 177\u00a0841 singleton nonlow birth weight newborns included, 14\u00a0598 (8.2%) had macrosomia. The mean PM2.5 concentrations were 70.7, 71.5, and 80.9\u00a0\u03bcg\/m<jats:sup>3<\/jats:sup> in the first, second, and third trimesters. In full\u2010adjusted logistic regression models, significant associations were found between increased risk of macrosomia and every 10\u00a0\u03bcg\/m<jats:sup>3<\/jats:sup> increase of PM2.5 concentration over the first (odds ratio [OR]: 1.045; 95% CI, 1.037\u20101.052), second (OR: 1.035; 95% CI, 1.028\u20101.043), and third (OR: 1.033; 95% CI, 1.026\u20101.039) trimesters. There was a nonlinear does\u2010response association between PM2.5 concentration and the risk of macrosomia.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Maternal exposure to PM2.5 during pregnancy was associated with an increased risk of macrosomia in China.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ijpo.12584","type":"journal-article","created":{"date-parts":[[2019,11,5]],"date-time":"2019-11-05T15:58:46Z","timestamp":1572969526000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":41,"title":["Effect of PM2.5 on macrosomia in China: A nationwide prospective cohort study"],"prefix":"10.1111","volume":"15","author":[{"given":"Shi","family":"Chen","sequence":"first","affiliation":[{"name":"Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, Peking Union Medical College Hospital (PUMCH) Chinese Academy of Medical Sciences &amp; Peking Union Medical College (CAMS 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