Organophosphorus metabolites in urine during pregnancy correlated to infant parameters: in a small sample (52 mother – child pairs only), two chlorinated (BCEP, BDCPP) and one non-halogenated (DPHP diphenyl phosphate) metabolites in urine during pregnancy showed correlations to infant weight, anthropometry and behaviour. Each of the three metabolites showed correlation to some factors, often sex specific but the authors note that the small sample size means that results should be considered as hypotheses. Also, DPHP is a metabolite not only of OPFRs but also of OPs used in many other applications (plasticisers, nail varnish).
“Maternal urinary concentrations of organophosphate ester metabolites: associations with gestational weight gain, early life anthropometry, and infant eating behaviors among mothers-infant pairs in Rhode Island”, K. Crawford et al., Environmental Health (2020) 19:97 https://doi.org/10.1186/s12940-020-00648-0