Effect of Adherence to a Mediterranean Diet and Olive Oil Intake during Pregnancy on Risk of Small for Gestational Age Infants Martínez Galiano, Juan Miguel Olmedo Requena, María Rocío Barrios Rodríguez, Rocío Amezcua Prieto, María Del Carmen Bueno Cavanillas, Aurora Salcedo Bellido, Inmaculada Jiménez Moleón, José Juan Delgado Rodríguez, Miguel Small for gestational age Infants Maternal nutrition Physiological phenomena Mediterranean diet Olive oil To quantify the effect of a Mediterranean dietary pattern, as well as the consumption of olive oil (OO), on the risk of having a small for gestational age infants (SGA), a matched case-control study was conducted in Spain. Dietary intake during pregnancy was assessed using a validated food frequency questionnaire. Three indices were used to evaluate the adherence to Mediterranean diet (MD) (Predimed, Trichopoulou and Panagiotakos). Crude odds ratios (cOR) and adjusted odds ratios (aOR) and their 95% confidence intervals (CI) were estimated using conditional logistic regression models. Results were stratified by severity of SGA: moderate (percentiles 6–10), and severe (percentiles _5). For moderate, four or more points in the Predimed´s index was associated with a 41% reduction of having SGA compared with women with a score _3, aOR = 0.59 (95% CI 0.38–0.98); for severe, the reduction in risk was not statistically significant. Similar results were found when the other MD indexes were used. An intake of OO above 5 g/day was associated with a lower risk of SGA (aOR = 0.53, 95% CI 0.34–0.85); statistical significance was observed for moderate SGA (aOR = 0.53, 95% CI 0.30–0.96), but not for severe SGA (aOR = 0.51, 95% CI 0.24–1.07), although the magnitude of ORs were quite similar. Adherence to a MD and OO intake is associated with a reduced risk of SGA. 2019-03-18T11:56:12Z 2019-03-18T11:56:12Z 2018-09-03 journal article Martínez-Galiano, J.M [et al.]. Effect of Adherence to a Mediterranean Diet and Olive Oil Intake during Pregnancy on Risk of Small for Gestational Age Infants. Nutrients 2018, 10, 1234. 2072-6643 http://hdl.handle.net/10481/54999 eng http://creativecommons.org/licenses/by/3.0/es/ open access Atribución 3.0 España MDPI