Food consumption patterns and Framingham cardiovascular risk score among shift workers: A Nova-based approach.

Objective: To evaluate the association between dietary quantity and variety, by extent and purpose of processing, and Framingham cardiovascular disease (CVD) risk score among rotating shift workers.

Methods: The cross-sectional study included male shift workers. Dietary intake was assessed using a 24-h recall method conducted by trained interviewers.

Temporal patterns of food consumption and their association with cardiovascular risk in rotating shift workers.

Objective: We aimed to evaluate the association of temporal patterns of food consumption with cardiovascular disease (CVD) risk.

Methods: This cross-sectional study included male rotating shift workers in an iron ore extraction company. Data on food consumption was collected using a 24 h recall, applied by trained interviewers.

Arterial hypertension in rotating shift workers: The role of hypertriglyceridemic waist and hypertriglyceridemic waist-to-height ratio phenotypes.

Objective: To examine the association of arterial hypertension and the hypertriglyceridemic waist phenotype (HWP) and hypertriglyceridemic waist-to-height phenotype (HWHP).

Methodology: This cross-sectional study was conducted with 1422 male rotating shift workers in Brazil. The HWP was defined as having a waist circumference ≥94 cm and serum triglycerides ≥150 mg/dL, whereas the HWHP was determined by having a waist-to-height ratio ≥0.

Vitamin D deficiency and hyperglycemia in male rotating shift workers: A disturbed circadian rhythms influence.

Background: Shift work is related to several negative impacts on the health of workers. This study aimed to evaluate the association between vitamin D deficiency (VDD) and hyperglycemia in shift workers.

Methodology: This cross-sectional study included male rotating shift workers in an iron ore extraction company.

Association of Hypovitaminosis D with Sleep Parameters in Rotating Shift Worker Drivers.

 To evaluate the association between sleep parameters and hypovitaminosis D in rotating shift drivers.  We conducted a cross-sectional study on 82 male rotating shift workers (24-57 years old) with at least one cardiovascular risk factor (such as hyperglycemia, dyslipidemia, abdominal obesity, physical inactivity, hypertension, and smoking). Polysomnography was used to evaluate sleep parameters.

Rotating shift workers with vitamin D deficiency have a higher risk of obstructive sleep apnea.

Objectives: The study aimed to evaluate the association between obstructive sleep apnea (OSA) and vitamin D deficiency (VDD) in shift workers.

Methods: This cross-sectional study included male rotating shift workers in an iron ore extraction company. Participants were classified as VDD when 25(OH)D < 20 ng/mL for a healthy population and 25(OH)D < 30 ng/mL for groups at risk for VDD.

Body fat indicators for cardiometabolic risk screening among shift workers.

Background: In view of the costly methods currently available for the assessment of body adiposity, anthropometric obesity indicators have proven effective in predicting cardiovascular risk.

Objective: To investigate the discriminatory power of body fat indicators for cardiovascular risk screening among shift workers.

Methods: Cross-sectional study with male employees of an iron ore extraction company.

Effects of vitamin D supplementation on cardiovascular risk factors in shift workers: Study protocol for randomized, double-blind, placebo-controlled clinical trial.

Objective: The present clinical study aims to describe protocol to evaluate the effects of vitamin D3 supplementation on the cardiovascular risk factors in a population of rotating shift workers.

Design: A randomized, double-blind, placebo-controlled, parallel group clinical trial testing 2 oral dosages of cholecalciferol (14,000 IU and 28,000 IU per week) for 12 months.

Setting: The primary outcome for evaluation is an 18% reduction in hypertriglyceridemia (≥150 mg/dL) between pre and postintervention measurements.

[Environmental conditions and prevalence of parasitic infection in Xukuru-Kariri indigenous people, Caldas, Brazil].

Objective: To describe the environmental conditions and the parasitic infection status of Xukuru-Kariri individuals living in the municipality of Caldas, state of Minas Gerais, Brazil.

Methods: A cross-sectional study was carried out in March 2009. Sociodemographic and environmental data were collected through interviews.

Heart rate variability in shift workers: responses to orthostatism and relationships with anthropometry, body composition, and blood pressure.

In order to investigate the response of heart rate variability (HRV) components to postural change and their association with cardiovascular risk factors in shift workers, a cross-sectional study with 438 Brazilian males rotating shift workers was done. Anthropometric, body composition, and clinical measures were collected. Electrocardiogram was recorded for 3 minutes, in the supine and orthostatic position, and HRV components were extracted.

Association between nutritional status, C-reactive protein, adiponectin and HOMA-AD in Brazilian children.

Introduction: In children, the presence of obesity is a major risk factor for the occurrence of cardiovascular diseases on the adulthood.

Objective: To evaluate the association of anthropometry, body composition, clinical variables and biochemical profile with C-reactive protein and adiponectin levels, and insulin resistance in children in the municipality of Nova Era, Brazil.

Methods: Nested case-control study following a crosssectional study.

[Nutritional profile of the Xukuru-Kariri indigenous people in the state of Minas Gerais in accordance with different anthropometric and body composition indicators].

The scope of this study was to evaluate the nutritional profile of indigenous Xukuru-Kariri villagers in the state of Minas Gerais between seven and seventy-eight years of age in accordance with the different anthropometric and body composition indicator. The measurements were: weight, height, waist circumference (WC) and body fat percentage (BF%). The sensitivity and specificity of anthropometric indices were calculated with a confidence interval of 95% and positive predictive value (PPV) and negative predictive value (NPV).

A comparative study of methods for diagnosis of obesity in an urban mixed-race population in Minas Gerais, Brazil.

Background: Obesity is defined as an excess of total body fat and may be assessed by different methods. The objective of the present study was to establish the discriminatory power of anthropometric data in determining obesity.

Methods: The subjects comprised 685 individuals, aged 20-79 years, sampled from a population-based survey.

Nutritional risk in the urban population of Ouro Preto, southeastern region of Brazil: the Ouro Preto heart study.

Objective: To estimate the prevalence of combined nutritional risk according to sociodemographic and sedentarism characteristics of the urban population of Ouro Preto, state of Minas Gerais, Brazil.

Methods: This cross-sectional study was conducted with a probability sampling of 768 subjects aged 15 years or older. Nutritional risk (NR) was defined according to the BMI and WC classification criteria adopted by the National Institutes of Health.

Lipoprotein(a) as a risk factor associated with ischemic heart disease: Ouro Preto Study.

Evidences suggest that lipoprotein(a) [Lp(a)] is an important risk factor for cardiovascular disease. However, literature has been controversial in confirming its role as an independent risk factor for cardiovascular disease. The objective of the present study is to evaluate the association between serum levels of Lp(a) and ischemic heart disease as well as other cardiovascular risk factors in a population-based study conducted on a local cohort of the Brazilian population.