| Titre : | Dietary Glycemic Index and the Risk of Birth Defects. (2012) |
| Auteurs : | Samantha-E PARKER ; ANDERKA (Marlene) : USA. Massachusetts Department of Public Health. Boston. MA. ; SHAW (Gary-M) : USA. Division of Neonatal and Developmental Medicine. Department of Pediatrics. Stanford University School of Medicine. Palo Alto. CA. ; Martha-M WERLER ; Mahsa-M YAZDY |
| Type de document : | Article |
| Dans : | American journal of epidemiology (vol. 176, n° 12, 2012) |
| Pagination : | 1110-1120 |
| Langues: | Anglais |
| Mots-clés : | Hyperglycémie ; Obésité ; Régime alimentaire ; Alimentation ; Aliment ; Glycémie ; Facteur risque ; Risque ; Malformation ; Nouveau né ; Epidémiologie ; Homme ; Glande endocrine [pathologie] |
| Résumé : | [BDSP. Notice produite par INIST-CNRS 9R0xCmmm. Diffusion soumise à autorisation]. Prepregnancy diabetes and obesity have been identified as independent risk factors for several birth defects, providing support for a mechanism that involves hyperglycemia and hyperinsulinemia in the development of malformations. Data from the National Birth Defects Prevention Study from 1997 to 2007 were used to investigate the association between the maternal dietary glycemic index (DGI) and the risk of birth defects among nondiabetic women. DGI was categorized by using spline regression models and quartile distributions. Adjusted odds ratios and 95% confidence intervals were calculated. The joint effect of DGI and obesity was also examined. Among the 53 birth defects analyzed, high DGI, categorized by spline regression, was significantly associated with encephalocele (adjusted odds ratio (aOR)=2.68), diaphragmatic hernia (aOR=2.58), small intestinal atresia/stenosis (aOR=2.97) including duodenal atresia/stenosis (aOR=2.48), and atrial septal defect (aOR=1.37). Using quartiles to categorize DGI, the authors identified associations with cleft lip with cleft palate (aOR=1.23) and anorectal atresia/stenosis (aOR=1.40). The joint effect of high DGI and obesity provided evidence of a synergistic effect on the risk of selected birth defects. High DGI is associated with an increased risk of a number of birth defects under study. Obesity coupled with high DGI appears to increase the risk further for some birth defects. |
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