Maternal anemia is a major global public health problem, and although widely discussed, there are few studies investigating the condition in pregnant women. In this article, issues related to the diagnosis, biological mechanism and prevalence of maternal anemia. In addition, iron deficiency anemia will be considered a proxy for maternal anemia. In previous studies, the concepts of maternal anemia have been controversial. It is also noted that isolated actions are not sufficient to combat this disease, and policies to address the primary causes of the associated nutritional deficiencies are necessary. Maternal Search strategiesMesh and similar terms were combined using Boolean operators (AND, OR), and the search strategy below was primarily used for Studies selectionAfter duplicate removal, titles and abstracts were screened for eligible articles independently by two reviewers (ACMGF and SSC). Two reviewers selected articles by reading titles and abstracts. During the process of selecting the articles the researchers were not aware of the decisions made by their colleague. After that, full text articles were assessed for eligibility. Discordant events were resolved by consensus. Data extractionData extraction was performed independently by two researchars (ACMGF and RBS) and discordant events resolved by consensus. We used a standardized electronic spreadsheet to extract the following information: author's name, year of publication, year of data collection and geographic region, study design, sample size, anemia diagnosis criteria, frequency of maternal anemia and iron deficiency anemia. Authors were contacted for additional information considered important for this review.

Introduction: The metabolic syndrome is characterized by multiple disorders, and the in periodontitis, inflammation occurs in the tissues supporting the tooth, where in this process it is believed that the migration of oral bacteria and byproducts to the circulatory system occurs, with a systemic spread of inflammatory mediators. This study aims to verify the effect of periodontitis on the occurrence of the metabolic syndrome. Method: Cross-sectional study with 90 users of the Family Health Unit from Vale do Cambonas in Salvador-BA. Questionnaires were applied, physical / anthropometric and dental evaluation were performed, record of the results of laboratory tests was registered and evaluation of medical records. Data analysis: A bivariate and stratified analysis was performed, obtaining means and standard deviation for continuous variables, absolute and relative frequency for all variables, and multiple conditional logistic regression was performed to obtain the final model adjusted for potential confounders. Results: In the final sample 46,67% of participants had metabolic syndrome according NECP-ATP III criterion and 30, 00% had periodontitis. From those, 20.00% had severe periodontitis, 10% moderate periodontitis and none with mild periodontitis, according to the criterion proposed by Gomes-Filho et al. (2018). There was statistical significance in the association between periodontitis and MetS (ORcrude = 2.58, 95% CI [1.02 - 6.55]) / (ORadjusted = 2.63, 95% CI [1.01 - 6.80]) and severe periodontitis and MetS (ORcrude = 3.86, 95% CI [1.24 - 11.98]) / (ORadjusted = 4.14, 95% CI [1.29-13.29]). Conclusion: The main findings of this study indicate a positive association between periodontitis and metabolic syndrome, with a higher effect when the exposure was severe periodontitis.