Carmen López-Escribano, Javier Martín-Babarro, Raquel Pérez-López
Promoting Handwriting Fluency for Preschool and Elementary-Age Students: Meta-Analysis and Meta-Synthesis of Research From 2000 to 2020
Frontiers in psychology
prenatal exposure persistent organic pollutants pops may associated obesogenic effects offspring study first investigate associations concentrations pops newborn dried blood spots dbs birth characteristics concentrations 10 polychlorinated biphenyl congeners pcbs polybrominated diphenyl ether47 pbde47 ppdichlorodiphenyldichloroethylene ppdde measured dbss collected birth 2065 singleton infants dbs samples pooled groups five assayed together reach limits detection differences risk large gestational age lga defined 90th percentile birth weight sex gestational age small gestational age sga 10th preterm birth gestational age 37 weeks estimated using logistic regression per unit ngml increase concentration chemical adjusting individuallevel covariates including maternal age raceethnicity prepregnancy bmi education parity smoking infant sex assuming gamma distribution using multiple imputation account pools 215 113 singletons born lga 158 75 born sga 157 76 born preterm higher concentrations pops positively associated slightly higher risk lga higher birth weight relationships pops measured newborn dbs birth size mixed pooled analysis methods using dbs could address challenges limits detection costs populationbased research