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Sa\u00fade P\u00fablica"],"abstract":"<jats:p>Resumo: A preval\u00eancia de nascimento pr\u00e9-termo tem apresentado uma tend\u00eancia crescente em v\u00e1rios pa\u00edses, inclusive naqueles desenvolvidos. Estudos no Brasil relatam que o Sistema de Informa\u00e7\u00f5es sobre Nascidos Vivos (SINASC), at\u00e9 2010, subestimava a preval\u00eancia de nascimentos pr\u00e9-termo, quando comparada aos estudos baseados em dados prim\u00e1rios. A partir de 2011, a idade gestacional ao nascer no SINASC tem sido calculada, quando dispon\u00edvel, pela data da \u00faltima menstrua\u00e7\u00e3o (DUM). O objetivo foi avaliar a acur\u00e1cia da determina\u00e7\u00e3o da idade gestacional gerada pela DUM, comparando com a de outros estimadores, e correlacion\u00e1-la com o peso ao nascer. Estudo de base populacional com dados do SINASC dispon\u00edveis no Departamento de Inform\u00e1tica do SUS entre 2011 e 2015. As defini\u00e7\u00f5es de prematuridade, baixo peso e asfixia ao nascer foram aquelas determinadas na literatura. A adequa\u00e7\u00e3o do peso ao nascer com a idade gestacional foi calculada baseando-se nas curvas de Fenton e Intergrowth-21. Compararam-se as m\u00e9dias de peso pela presen\u00e7a ou n\u00e3o de prematuridade. A estima\u00e7\u00e3o da idade gestacional foi realizada pela DUM em 58,5%, e 41,5% utilizaram outro m\u00e9todo. Encontrou-se que a propor\u00e7\u00e3o de prematuridade foi de 12% no grupo DUM e 8,4% no grupo outro m\u00e9todo, j\u00e1 o baixo peso ao nascer foi de 6,5% e 8,4%, respectivamente. A m\u00e9dia de peso dos prematuros no grupo DUM foi maior. O uso da DUM como estimador da idade gestacional superestimou a propor\u00e7\u00e3o de peso maior ou igual a 2.500g nos prematuros, o que n\u00e3o parece compat\u00edvel com a distribui\u00e7\u00e3o esperada para esta faixa. A DUM favoreceu a \u201ccorre\u00e7\u00e3o\u201d da prematuridade para os par\u00e2metros compar\u00e1veis aos de estudos com dados prim\u00e1rios, embora as distor\u00e7\u00f5es encontradas entre idade gestacional e peso ao nascer possam indicar que ainda existem problemas com este estimador.<\/jats:p>","DOI":"10.1590\/0102-311x00098918","type":"journal-article","created":{"date-parts":[[2019,4,6]],"date-time":"2019-04-06T20:40:20Z","timestamp":1554583220000},"source":"Crossref","is-referenced-by-count":13,"title":["Acur\u00e1cia da determina\u00e7\u00e3o da idade gestacional no Sistema de Informa\u00e7\u00f5es sobre Nascidos Vivos (SINASC): um estudo de base populacional"],"prefix":"10.1590","volume":"35","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8524-2898","authenticated-orcid":false,"given":"Licia Barbosa","family":"Henriques","sequence":"first","affiliation":[{"name":"Faculdade Vale do Cricar\u00e9,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7950-8947","authenticated-orcid":false,"given":"Erika Barreto","family":"Alves","sequence":"additional","affiliation":[{"name":"Secretaria Municipal de Sa\u00fade do Rio de Janeiro,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2010-761X","authenticated-orcid":false,"given":"Fernanda Morena dos Santos Barbeiro","family":"Vieira","sequence":"additional","affiliation":[{"name":"Secretaria Municipal de Sa\u00fade do Rio de Janeiro,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8147-9452","authenticated-orcid":false,"given":"Bruno Baptista","family":"Cardoso","sequence":"additional","affiliation":[{"name":"Secretaria Municipal de Sa\u00fade do Rio de Janeiro,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8540-4906","authenticated-orcid":false,"given":"Adriana Cristina Rodrigues","family":"D\u2019Angeles","sequence":"additional","affiliation":[{"name":"Secretaria Municipal de Sa\u00fade do Rio de Janeiro,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3289-3195","authenticated-orcid":false,"given":"Oswaldo Gon\u00e7alves","family":"Cruz","sequence":"additional","affiliation":[{"name":"Secretaria Municipal de Sa\u00fade do Rio de Janeiro,  Brazil; Funda\u00e7\u00e3o Oswaldo Cruz,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2309-5511","authenticated-orcid":false,"given":"Monique Felix Ribeiro da","family":"Silva","sequence":"additional","affiliation":[{"name":"Secretaria Municipal de Sa\u00fade do Rio de Janeiro,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7360-6490","authenticated-orcid":false,"given":"Valeria","family":"Saraceni","sequence":"additional","affiliation":[{"name":"Secretaria Municipal de Sa\u00fade do Rio de Janeiro,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"530","published-online":{"date-parts":[[2019]]},"reference":[{"key":"ref1","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1590\/S0034-89101993000700001","article-title":"Avalia\u00e7\u00e3o do sistema de informa\u00e7\u00e3o sobre nascidos vivos e o uso de seus dados em epidemiologia e estat\u00edsticas de sa\u00fade","volume":"27","author":"Mello Jorge MHP","year":"1993","journal-title":"Rev Sa\u00fade P\u00fablica"},{"key":"ref2","first-page":"247","article-title":"WHO: recommended definitions, terminology and format for statistical tables related to the perinatal period and use of a new certificate for cause of perinatal deaths. 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