SUMMARY OBJECTIVE: This study aims to evaluate the role of anthropometric clinical indicators of visceral adiposity as predictors of NAFLD, identifying the cutoff points based on gender. METHODS: This was a cross-sectional study conducted in patients with or without NAFLD. Waist circumference (WC), body mass index (BMI), waist-to-height ratio (WHtR), Conicity Index (C Index), and lipid accumulation product (LAP) were evaluated. RESULTS: A total of 107 individuals were evaluated, of which 46.7% were diagnosed with NAFLD. Individuals with NAFLD presented higher values of WC, BMI, C Index, LAP, and WHtR when compared with those without NAFLD (p<0.05). For the total sample, the indicators WC, BMI, WHtR, LAP, and C Index had an area under the receiver operator characteristic curve (AUC) above 0.87, with no difference in the prediction of NAFLD in both sexes. WHtR (AUC=0.934) was the indicator of visceral adiposity with the best discriminatory power for NAFLD, followed by LAP (0.919), WC (0.912), C Index (0.907), and BMI (0.877). CONCLUSIONS: The anthropometric clinical indicators of visceral adiposity showed high performance, especially the WHtR indicator, as NAFLD predictors.

Resumo Objetivos: estimar a prevalência de cesáreas e fatores associados ao tipo de parto no Brasil. Métodos: foram coletados dados referentes aos partos ocorridos no Brasil em 2014. Foram avaliadas características demográficas, relacionadas à gravidez e ao regime do hospital de nascimento (público ou privado). Para cada hipótese levantada, as variáveis foram modeladas através de regressão logística binária, cujo desfecho considerado foi o tipo de parto. Resultados: a prevalência de cesárea no Brasil, em 2014, foi de 52,8%, sendo 38,1% em hospitais públicos e 92,8% em hospitais privados. No modelo logístico, destacou-se a associação entre a realização de cesáreas e o regime jurídico do hospital, que apresentou associação positiva e interação entre faixas etárias (OR = 23,26; IC = 95% 13,39- 41,79 para mulheres entre 20 e 24 anos e OR = 51,04; IC = 95% 31,06 - 84,23 para mulheres com 35 anos ou mais). Conclusões: a realização do parto no Brasil vai ao encontro das rotinas e recomendações estabelecidas nas políticas de saúde da mulher e parto humanizado do Sistema Único de Saúde.

Abstract Objectives: to estimate the prevalence of cesarean sections and factors associated to the type of childbirth in Brazil. Methods: data on childbirths were collected in Brazil in 2014. Demographic characteristics, related to pregnancy and birth hospital regime (public or private) were evaluation. For each hypothesis raised, the variables were modeled by the binary logistic regression, which the outcome was considered in the type of childbirth. Results: the prevalence of the cesarean sections in Brazil in 2014 was 52.8%; that is 38.1% at public hospitals and 92.8% at private ones. The association between cesarean section and the legal regime at the hospital was highlighted in the logistic model which presented a positive association and interaction between age groups (OR = 23.26; 95% CI= 13.39 - 41.79 for women between 20 and 24 years old and OR = 51.04; 95% CI 31.06 - 84.23 for women aged 35 and over). Conclusions: the performance of childbirth in Brazil meets the routines and recommendations regarding women's health and humanized childbirth established by the Brazilian National Health System policies.