{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,31]],"date-time":"2026-07-31T12:10:52Z","timestamp":1785499852463,"version":"3.56.0"},"reference-count":47,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"1","license":[{"start":{"date-parts":[[2020,2,1]],"date-time":"2020-02-01T00:00:00Z","timestamp":1580515200000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:sec>\n            <jats:title>Background:<\/jats:title>\n            <jats:p>Epidemiologic studies suggest that exposure to water disinfection by-products (DBPs) may increase the risk of certain birth defects. However, evidence for musculoskeletal defects (MSDs) is limited. Previous MSD studies have not examined DBPs beyond trihalomethanes (THMs) and have not separately examined limb or diaphragm defects which may have distinct developmental etiologies.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods:<\/jats:title>\n            <jats:p>We calculated adjusted odds ratios (aORs) in a registry-based case-control study of birth defects in Massachusetts with complete quarterly 1999\u20132004 data on four THMs and five haloacetic acids (HAAs). We matched 10 controls each to 187 MSD cases based on week of conception. Weight-averaged town-level first-trimester DBP exposures were individually assigned based on residence at birth. We adjusted THM models for exposure to the sum of five HAAs (HAA5), and HAA models for the sum of four THMs (THM4).<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results:<\/jats:title>\n            <jats:p>We detected positive exposure-response associations for all grouped MSDs with THM4 quintiles (aOR range: 1.90\u20133.18) and chloroform quartiles (aOR range: 1.30\u20132.21), and for reduction of upper or lower limbs with chloroform quartiles (aOR range: 2.39\u20133.52). We detected elevated aORs for diaphragmatic hernia with DBP9 (sum of THM4 and HAA5), and chloroform and bromodichloromethane tertiles and an exposure-response relationship for THM4 tertiles (aOR range: 1.67\u20131.80).<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusion:<\/jats:title>\n            <jats:p>This is the first epidemiologic study to examine HAAs in relation to MSDs. Given the indirect nature of our exposure assessment data and small case numbers, the exposure-response relationships that we detected for THM4 and chloroform warrant further investigation.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1097\/ee9.0000000000000081","type":"journal-article","created":{"date-parts":[[2020,2,12]],"date-time":"2020-02-12T20:28:18Z","timestamp":1581539298000},"page":"e081","source":"Crossref","is-referenced-by-count":15,"title":["Disinfection by-product exposures and the risk of musculoskeletal birth defects"],"prefix":"10.1097","volume":"4","author":[{"given":"John A.","family":"Kaufman","sequence":"first","affiliation":[{"name":"Association of Schools and Programs of Public Health, hosted by National Center for Environmental Assessment, Office of Research and Development, U.S. Environmental Protection Agency, Cincinnati, Ohio"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J. Michael","family":"Wright","sequence":"additional","affiliation":[{"name":"National Center for Environmental Assessment, Office of Research and Development, U.S. Environmental Protection Agency, Cincinnati, Ohio"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amanda","family":"Evans","sequence":"additional","affiliation":[{"name":"Campbell University, School of Osteopathic Medicine, Lillington, North Carolina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zorimar","family":"Rivera-N\u00fa\u00f1ez","sequence":"additional","affiliation":[{"name":"Rutgers School of Public Health, Department of Biostatistics and Epidemiology, Piscataway, New Jersey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amy","family":"Meyer","sequence":"additional","affiliation":[{"name":"Oak Ridge Institute of Science and Education, hosted by National Center for Environmental Assessment, Office of Research and Development, U.S. Environmental Protection Agency, 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