{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T07:35:11Z","timestamp":1790494511829,"version":"4.1.0"},"reference-count":35,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2012,3,9]],"date-time":"2012-03-09T00:00:00Z","timestamp":1331251200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["American J of Med Genetics Pt A"],"published-print":{"date-parts":[[2012,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Currently accepted birth prevalence for osteochondrodysplasias (OCD) of about 2\/10,000 is based on few studies from small series of cases. We conducted a study based on more than 1.5 million births. OCD cases were detected from 1,544,496 births occurring and examined in 132 hospitals of ECLAMC (Latin American Collaborative Study of Congenital Malformations) between 2000 and 2007. Cases were detected and registered according to a pre\u2010established protocol, and then ranked in four diagnostic evidence levels (DEL), according to available documentation. For the analysis of risk factors, a healthy control sample born in the same period was used. OCD was diagnosed in 492 newborns, resulting in a prevalence per 10,000 of 3.2 (95% CI: 2.9\u20133.5). Perinatal lethality (stillbirths plus early neonatal deaths) occurred in 50% of cases. Prenatal ultrasound diagnosis was made in 73% of cases (n\u2009=\u2009359). Among 211 cases from the best documented group (DEL\u20101) and according to international classification, 33% of cases fit into the G\u201025 (osteogenesis imperfecta), 29% in Group\u20101 (<jats:italic>FGFR3<\/jats:italic>), and 8% in Group\u201018 (Bent bones). The prevalence of the main OCD types were: OI\u20140.74 (0.61\u20130.89); thanatophoric dysplasia\u20140.47 (0.36\u20130.59); and achondroplasia\u20140.44 (0.33\u20130.55). Paternal age (31.2\u2009\u00b1\u20098.5), parity (2.6), and parental consanguinity rate (5.4%) were higher in cases than in controls (<jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001). In conclusion, the OCD overall prevalence of 3.2 per 10,000 found seems to be more realistic than previous estimates. This study also confirmed the high perinatal mortality, and the association with high paternal age, parity, and parental consanguinity rate. \u00a9 2012 Wiley Periodicals, Inc.<\/jats:p>","DOI":"10.1002\/ajmg.a.35246","type":"journal-article","created":{"date-parts":[[2012,3,9]],"date-time":"2012-03-09T21:27:29Z","timestamp":1331328449000},"page":"1038-1045","source":"Crossref","is-referenced-by-count":66,"title":["Clinical epidemiology of skeletal dysplasias in South America"],"prefix":"10.1002","volume":"158A","author":[{"given":"Cec\u00edlia O.","family":"Barbosa\u2010Buck","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"I\u00eada M.","family":"Orioli","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria","family":"da Gra\u00e7a Dutra","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jorge","family":"Lopez\u2010Camelo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eduardo E.","family":"Castilla","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Denise P.","family":"Cavalcanti","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2012,3,9]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/bdra.10009"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajmg.1320320411"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1136\/jmg.26.1.37"},{"key":"e_1_2_6_5_1","first-page":"1","article-title":"CRTAP and LEPRE1 mutations in recessive osteogenesis imperfecta","volume":"0","author":"Baldridge D","year":"2008","journal-title":"Hum Mut"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa0907705"},{"key":"e_1_2_6_7_1","first-page":"441","article-title":"Birth prevalence of skeletal dysplasias in the Italian multicentric monitoring system for birth defects","volume":"104","author":"Camera G","year":"1982","journal-title":"Prog Clin Biol Res"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1159\/000080776"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1136\/jmg.2009.069468"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajmg.1320360338"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajmg.1320220205"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1136\/jmg.2008.065201"},{"key":"e_1_2_6_13_1","first-page":"307","article-title":"Different types of osteochondrodysplasia in a consecutive series of newborns","volume":"30","author":"Gustavson KH","year":"1975","journal-title":"Helv Pediat Acta"},{"key":"e_1_2_6_14_1","volume-title":"Handbook of physical measurements","author":"Hall JG","year":"1989"},{"key":"e_1_2_6_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajhg.2009.10.001"},{"key":"e_1_2_6_16_1","doi-asserted-by":"publisher","DOI":"10.1093\/ije\/22.1.107"},{"key":"e_1_2_6_17_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.111"},{"key":"e_1_2_6_18_1","doi-asserted-by":"publisher","DOI":"10.1097\/GIM.0b013e3181971ccb"},{"key":"e_1_2_6_19_1","volume-title":"Taybi and Lachman's radiology of syndromes, metabolic disorders and skeletal dysplasias","author":"Lachman RS","year":"2007"},{"key":"e_1_2_6_20_1","doi-asserted-by":"publisher","DOI":"10.1097\/00019605-199504000-00004"},{"key":"e_1_2_6_21_1","doi-asserted-by":"publisher","DOI":"10.1159\/000022956"},{"key":"e_1_2_6_22_1","doi-asserted-by":"publisher","DOI":"10.1136\/jmg.16.2.140"},{"key":"e_1_2_6_23_1","doi-asserted-by":"publisher","DOI":"10.1136\/jmg.23.4.328"},{"key":"e_1_2_6_24_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajmg.1320590218"},{"key":"e_1_2_6_25_1","unstructured":"OttoPA.2008.Gen\u00e9tica de poblaciones humanas. 1a ed. 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