Correlation between preconception maternal non-occupational exposure to interior decoration or oil paint odour and average birth weight of neonates: findings from a nationwide cohort study in China's rural areas.
BACKGROUND
Birth weight is a critical indicator of neonatal health and foretells people's health in adolescence and even adulthood. Some researchers have warned against the adverse effects on babies' birth weight of exposure to pollutants in interior decoration or oil paint by odour intake. This study evaluated the effects of maternal exposure to such factors before conception on the birth weights of neonates.


METHODS
Data on 213 461 cases in this study were from the database of the free National Pre-pregnancy Checkups Project. Defined as 'exposed' were those women exposed to oil paint odour or interior decoration at home or in the workplace within 6 months before their pregnancy. The study focused on revealing the correlation between such exposure and the birth weight of the neonates of these women, especially the incidence of macrosomia and low birth weight (LBW). Statistical analysis was conducted using the Kruskal-Wallis H test, the Mann-Whitney U test and logistic regression.


RESULTS
The birth weight of babies from mothers non-occupationally exposed to such settings averaged 3465 g (range 3150-3650 g), whereas the birth weight of those from mothers free of such exposure averaged 3300 g (range 3000-3600g). Maternal exposure preconception to interior decoration or oil paint odour reduced the incidence of LBW in their babies (p=0.003, OR 0.749, 95% CI 0.617 to 0.909). Such exposure may also augment the probability of macrosomia (p<0.001, OR 1.297, 95% CI 1.133 to 1.484).


CONCLUSION
Maternal exposure to interior decoration or oil paint odour preconception may increase the average birth weight of neonates, as well as the incidence of macrosomia.
['Liu|Huiting|H|', 'Chen|Shi|S|', 'Zhu|Huijuan|H|', 'Yang|Hongbo|H|', 'Gong|Fengying|F|', 'Wang|Linjie|L|', 'Jiang|Yu|Y|', 'Lian|Bill Q|BQ|', 'Yan|Chengsheng|C|', 'Li|Jianqang|J|', 'Wang|Qing|Q|', 'Zhang|Shikun|S|', 'Pan|Hui|H|']
D000328:Adult D016902:Air Pollution, Indoor D001724:Birth Weight D002681:China D015331:Cohort Studies D005260:Female D005320:Fetal Macrosomia D006801:Humans D015994:Incidence D007230:Infant, Low Birth Weight D007231:Infant, Newborn D016015:Logistic Models D008297:Male D018811:Maternal Exposure D010150:Paint D011247:Pregnancy D012424:Rural Population D055815:Young Adult
birth weight macrosomia low birth weight Interior decoration or oil paint odor