{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T15:44:57Z","timestamp":1787586297513,"version":"build-2736575974"},"reference-count":40,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2005,12,16]],"date-time":"2005-12-16T00:00:00Z","timestamp":1134691200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Maternal &amp; Child Nutrition"],"published-print":{"date-parts":[[2006,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The authors determined the association between maternal haemoglobin concentration measured at &lt;28\u2003weeks\u2019 gestation and late fetal death at \u226528\u2003weeks\u2019 gestation (stillbirth). Data were derived from the National Maternal and Infant Health Survey \u2013 a nationally representative survey of US\u2003deliveries in 1988. Analysis was restricted to women with a singleton live birth (<jats:italic>n<\/jats:italic>\u2003=\u20034199) or a stillbirth (<jats:italic>n<\/jats:italic>\u2003=\u20031375) for whom maternal prenatal care, haemoglobin, smoking status and gestational age data were available. Haemoglobin concentrations during first and second trimesters, respectively, were classified as mild (10.0 to &lt;11.0 and 9.5 to &lt;10.5\u2003g\u2003dL<jats:sup>\u22121<\/jats:sup>) or moderate (9.0 to &lt;10.0 and 8.5 to &lt;9.5\u2003g\u2003dL<jats:sup>\u22121<\/jats:sup>) anaemia, or high haemoglobin (\u226514.6\u2003g\u2003dL<jats:sup>\u22121<\/jats:sup> in either trimester). Hazard ratios (HR) and 95% confidence intervals (CI) for stillbirth were derived from discrete proportional hazards regression models after adjusting for confounders. Stillbirth was not associated with mild anaemia or high haemoglobin in either the first or second trimester of pregnancy. Moderate anaemia measured before 28\u2003weeks\u2019 gestation was significantly associated with an increased risk of stillbirth among non\u2010black women (adjusted HR: 4.4; 95% CI: 1.02, 19.01). Moderate anaemia was not associated with stillbirths among black women. Further investigation regarding causal mechanisms for this association is warranted.<\/jats:p>","DOI":"10.1111\/j.1740-8709.2006.00044.x","type":"journal-article","created":{"date-parts":[[2005,12,16]],"date-time":"2005-12-16T10:56:08Z","timestamp":1134730568000},"page":"19-28","source":"Crossref","is-referenced-by-count":25,"title":["Risk of stillbirth in relation to maternal haemoglobin concentration during pregnancy"],"prefix":"10.1111","volume":"2","author":[{"given":"Kay M.","family":"Tomashek","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cande V.","family":"Ananth","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mary E.","family":"Cogswell","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2005,12,16]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1093\/jn\/131.2.581S"},{"key":"e_1_2_6_3_1","volume-title":"Guidelines for Perinatal Care","author":"American Academy of Pediatrics & American College of Obstetricians and Gynecologists (AAP & ACOG","year":"2002"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1053\/sper.2002.29850"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1023\/A:1022373205005"},{"key":"e_1_2_6_6_1","first-page":"130","article-title":"The relationship between maternal hematocrit and pregnancy outcome: black\u2013white differences","volume":"85","author":"Blankson M.L.","year":"1993","journal-title":"Journal of the National Medical Association"},{"key":"e_1_2_6_7_1","first-page":"1","article-title":"Recommendations to prevent and control iron deficiency in the United States","volume":"47","author":"Centers for Disease Control and Prevention (CDC","year":"1998","journal-title":"Morbidity and Mortality Weekly Report"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1093\/jn\/133.7.2348"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.316.7143.1483"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1053\/sper.2002.29841"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.nu.06.070186.000305"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1093\/ajcn\/34.1.115"},{"key":"e_1_2_6_13_1","first-page":"155","article-title":"Maternal hematologic levels and pregnancy outcomes","volume":"5","author":"Garn S.M.","year":"1981","journal-title":"Seminars in Perinatology"},{"key":"e_1_2_6_14_1","volume-title":"Iron Deficiency Anemia: Recommended Guidelines for the Prevention, Detection, and Management among U. 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