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Introduction: Human vitamin D levels have been increasingly related to a wide range of clinical outcomes. There is a large amount of reports on its associations, especially with obstetric complications, including preeclampsia and gestational diabetes. These results are scarcely consistent and there is still a lack of quality intervention studies to confirm the role of vitamin D in those outcomes. Objective: To review the available scientific evidence on the role of maternal vitamin D in the development of preeclampsia., Materials and Methods: The methodology used followed the recommendations of the Cochrane guide for the preparation of systematic reviews, and for metaanalysis, the Guide of the Metaanalysis of Observational Studies in Epidemiology group (MOOSE). The search included both observational studies and controlled clinical trials., Results: Low vitamin D levels, measured by the 25-hydroxyvitamin D test, are common in pregnancy. The results of this systematic review and metaanalysis suggest an inverse ratio between vitamin D levels and the development of preeclampsia. There was heterogeneity among the studies with regard to the design, population, geographic location, definitions of exposure, and the outcome. We excluded randomized controlled trials from this meta-analysis., Conclusion: The inverse association we found suggests that the higher the levels of vitamin D the lesser the probability of developing preeclampsia, in spite of the heterogeneity of the global measurement in this type of analysis.

Introduction: hospitalary malnutrition is highly prevalent and is related with prolonged hospital stay, increase in attention costs and associated clinic complications., Objective: to determine the risk of malnutrition in hospitalized patients in a highly specialized health center and its associated factors., Methods: questionnaires of the Nutrition Day initiative were applied to 70 adult patients of a health institution of high level of complexity in Bucaramanga, Colombia. The parameters included anthropometric and socio demographic data, clinical history, factors related to the diet, and the patients' perception regarding their health status. Malnutrition Screening Tool (MST) was applied to assess the risk of malnutrition. To establish the reasons for prevalence (RP), binomial regression models were used., Results: age and length of hospital stay, at the time of the baseline, were in average, 61.89 ± 15.17 years old and 7.96 ± 9.79 days. The prevalence of risk of malnutrition was 52.86% (CI 95%: 40.55% - 64.91%); 40.91% for women and 58.33% for men (p = 0.175). 18.57% of the patients did not consume any food at lunch. 40.00% of the participants manifested having had an intake lower than normal, during the previous week. The variables associated to risk of malnutrition, adjusted by age and sex, were: food intake at baseline, readmission, and length of hospital stay during follow up., Conclusion: evidence about the importance of early diagnosis and of proper nutritional management of hospitalary malnutrition support the need to implement effective nutritional interventions., (Copyright AULA MEDICA EDICIONES 2014. Published by AULA MEDICA. All rights reserved.)