{"doi":"10.17615/p3m6-hy17","title":"Lactational exposure to polychlorinated biphenyls, dichlorodiphenyltrichloroethane, and dichlorodiphenyldichloroethylene and infant growth: an analysis of the Pregnancy, Infection, and Nutrition Babies Study: Lactational exposure to persistent environmental pollutants","abstract":"Polychlorinated biphenyls (PCBs), 2,2-bis(p-chlorophenyl)-1,1,1-trichloroethane (p,p’-DDT) and 2,2-bis(p-chlorophenyl)-1,1-dichloroethylene (p,p’-DDE), the most stable metabolite of p,p’-DDT, are persistent organic pollutants and environmental endocrine disruptors. Infant exposure to these chemicals through breast feeding may influence children’s growth, but this potential adverse effect could be complicated by the co-existing benefits of breast feeding. This study examined the associations between lactational exposure to these chemicals and infant growth in the first 12 months by using data from the Pregnancy, Infection and Nutrition Babies Study in central North Carolina, United States, 2004–2006. The study population was restricted to the infants who were breastfed for 6 months or longer. PCBs, p,p’-DDT and p,p’-DDE were measured in breast milk at 3 months postpartum. Lactational exposure through 12 months was estimated as the product of chemical concentrations and the duration of breast feeding. The infant’s weight and length were recorded from the medical record for each routine pediatric well-child visit in the first 12 months. Women-child pairs who breastfed for 6 months or longer and returned the growth card (n=210), were included in the study. Linear mixed effects models were used to assess the associations between chemical concentrations in breast milk and longitudinal infant weight and length measurements in the first 6 months. Multivariable linear regression models were used to assess the relationships between lactational exposure to chemicals through 12 months and the z-scores of infant weight, length and weight-for-length at 12 months. Overall, no association was observed. Breast feeding for 6 months or longer, with lactational exposure to PCBs, p,p’-DDT and p,p’-DDE at the low background level concentrations studied here, results in no measurable influence on infant growth in the first 12 months.","journal":"UNC Libraries","year":2020,"id":141369,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":0,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9485,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2020-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":431772,"name":"Walter J. Rogan","orcid":"0000-0002-9302-0160","position":1,"is_corresponding":false},{"id":307596,"name":"Julie L. Daniels","orcid":"0000-0002-9658-3743","position":2,"is_corresponding":false},{"id":366916,"name":"Barbara Davis Goldman","orcid":"0000-0002-5267-9540","position":3,"is_corresponding":false},{"id":354327,"name":"Andreas Sjödin","orcid":"0000-0002-0997-5758","position":4,"is_corresponding":false},{"id":347308,"name":"Amy H. Herring","orcid":"0000-0003-1552-8871","position":5,"is_corresponding":false},{"id":593749,"name":"I‐Jen Pan","orcid":null,"position":6,"is_corresponding":false},{"id":420888,"name":"Anna Maria Siega‐Riz","orcid":"0000-0002-1303-4248","position":0,"is_corresponding":true}],"reference_count":0,"raw_metadata":null,"created_at":"2026-07-18T23:17:24.429854Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}