{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,5]],"date-time":"2026-02-05T11:14:34Z","timestamp":1770290074875,"version":"3.49.0"},"reference-count":45,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2019,4,26]],"date-time":"2019-04-26T00:00:00Z","timestamp":1556236800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Maternal &amp; Child Nutrition"],"published-print":{"date-parts":[[2019,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Studies of iron and its association with the risk of small for gestational age (SGA) show inconsistent results. Consuming iron supplements during pregnancy is controversial because of possible risks. This study assessed the association between iron intake and the risk of having an SGA newborn and whether iron intake is associated with gestational diabetes. A case\u2013control study of 518 pairs of Spanish women who were pregnant and attending five hospitals was conducted. Groups were matched 1:1 for age (\u00b12\u00a0years) and hospital. Cases were women with an SGA newborn at delivery. Controls were women with normal\u2010sized newborns at delivery. Data were gathered on demographic characteristics, socio\u2010economic status, adverse habits (like smoking), and diet. A 137\u2010item food frequency questionnaire was completed. Iron intakes were categorized in quintiles (Q1\u2013Q5). Crude odds ratios (ORs) and adjusted ORs (aORs) with 95% confidence intervals (CIs) were estimated by conditional logistic regression. No significant relationship was found between dietary iron intake and SGA. A protective association was found for women receiving iron supplementation &gt;40\u00a0mg\/day and SGA versus women not taking supplements (aOR\u00a0=\u00a00.64, 95% CI [0.42, 0.99]). This association was identified in mothers both with (aOR\u00a0=\u00a00.57, 95% CI [0.40, 0.81]) and without (aOR\u00a0=\u00a00.64, 95% CI [0.64, 0.97]) anaemia. In women in the control group without anaemia, iron supplementation &gt;40\u00a0mg\/day was positively associated with gestational diabetes (aOR\u00a0=\u00a06.32, 95% CI [1.97, 20.23]). Iron supplementation in pregnancy may prevent SGA independently of existing anaemia but may also increase the risk of gestational diabetes.<\/jats:p>","DOI":"10.1111\/mcn.12814","type":"journal-article","created":{"date-parts":[[2019,3,23]],"date-time":"2019-03-23T15:54:54Z","timestamp":1553356494000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Maternal iron intake during pregnancy and the risk of small for gestational age"],"prefix":"10.1111","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0878-8635","authenticated-orcid":false,"given":"Juan Miguel","family":"Mart\u00ednez\u2010Galiano","sequence":"first","affiliation":[{"name":"Department of Health Sciences University of Ja\u00e9n  Ja\u00e9n Spain"},{"name":"CIBER de Epidemiolog\u00eda y Salud P\u00fablica, CIBERESP  Madrid Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carmen","family":"Amezcua\u2010Prieto","sequence":"additional","affiliation":[{"name":"CIBER de Epidemiolog\u00eda y Salud P\u00fablica, CIBERESP  Madrid Spain"},{"name":"Department of Preventive Medicine and Public Health University of Granada  Granada Spain"},{"name":"Biosanitary Research Institute Granada, IBS  Granada Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Naomi","family":"Cano\u2010Iba\u00f1ez","sequence":"additional","affiliation":[{"name":"CIBER de Epidemiolog\u00eda y Salud P\u00fablica, CIBERESP  Madrid Spain"},{"name":"Department of Preventive Medicine and Public Health University of Granada  Granada Spain"},{"name":"Biosanitary Research Institute Granada, IBS  Granada Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Inmaculada","family":"Salcedo\u2010Bellido","sequence":"additional","affiliation":[{"name":"CIBER de Epidemiolog\u00eda y Salud P\u00fablica, CIBERESP  Madrid Spain"},{"name":"Department of Preventive Medicine and Public Health University of Granada  Granada Spain"},{"name":"Biosanitary Research Institute Granada, IBS  Granada Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aurora","family":"Bueno\u2010Cavanillas","sequence":"additional","affiliation":[{"name":"CIBER de Epidemiolog\u00eda y Salud P\u00fablica, CIBERESP  Madrid Spain"},{"name":"Department of Preventive Medicine and Public Health University of Granada  Granada Spain"},{"name":"Biosanitary Research Institute Granada, IBS  Granada Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Miguel","family":"Delgado\u2010Rodriguez","sequence":"additional","affiliation":[{"name":"Department of Health Sciences University of Ja\u00e9n  Ja\u00e9n Spain"},{"name":"CIBER de Epidemiolog\u00eda y Salud P\u00fablica, CIBERESP  Madrid Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2019,4,26]]},"reference":[{"key":"e_1_2_10_2_1","volume-title":"La Medici\u00f3n de la Clase Social en Ciencias de la Salud, Informe de un Grupo de Trabajo de la Sociedad Espa\u00f1ola de Epidemiolog\u00eda","author":"\u00c1lvarez\u2010Dardet C.","year":"1995"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.3945\/jn.115.227793"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.3945\/ajcn.117.156083"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.3390\/nu9121327"},{"issue":"4","key":"e_1_2_10_6_1","first-page":"304","article-title":"Iron supplementation and oxidative stress in pregnancy: A little\u2010discussed paradox","volume":"58","author":"Calder\u00f3n V\u00e9lez J.","year":"2007","journal-title":"Revista Colombiana de Obstetricia y Ginecolog\u00eda"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.7326\/M14-2932"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1017\/S1368980009993065"},{"issue":"1","key":"e_1_2_10_9_1","first-page":"50","article-title":"The fetal development curves of newborn infants in the Hospital de Cruces (Vizcaya). 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