Recommended dairy intake is associated with healthy dietary habits, better physical fitness, less obesity and a healthier lifestyle profile in school age children.

This study aimed to identify the association of recommended dairy intake with several dietary habits, obesity, physical fitness (PF), physical activity (PA), screen time and sleep. Population data were derived from a health survey on a representative sample of 177 091 children aged 8-17 years. Dairy intake and dietary habits were evaluated using questionnaires (KIDMED index).

Screen time and its effect on dietary habits and lifestyle among schoolchildren.

Objective: The aim of the study was to determine the associations between recreational screen time and dietary habits and lifestyle factors in a representative sample of schoolchildren.

Methods: Observational, cross-sectional study data were derived from 177,091 children aged 8 to 17 years participating in a health survey. Recreational screen time, physical activity (PA), and sleeping hours were assessed through self-completed questionnaires.

Students Living in the Islands are Heavier and have Lower Fitness Levels Compared to their Mainland Counterparts; Results from the National Action for Children's Health (EYZHN) Program.

Few studies have examined variations in obesity by geographic location in youth and its relation with fitness levels. The present study investigated the association between geographic status (islands versus mainland), excess of body weight and fitness levels among 335.810 schoolchildren (male: 51.

Exclusive olive oil consumption was favorably associated with metabolic indices and lifestyle factors in schoolchildren.

Background And Aim: Olive oil consumption has been suggested to favorably impact children's health. The present study aimed to identify possible associations between exclusive olive oil consumption and metabolic indices and lifestyle factors.

Methods And Results: Cross-sectional, observational study.

Prevalence, trends and risk factors of thinness among Greek children and adolescents.

Introduction: Thinness affects more children and adolescents than obesity. Thus, the aim of the study is to examine the recent estimates of thinness and associated risk factors, and to identify trends in thinness, among Greek schoolchildren.

Methods: Epidemiological study.

High and moderate adherence to Mediterranean lifestyle is inversely associated with overweight, general and abdominal obesity in children and adolescents: The MediLIFE-index.

Several lifestyle factors, such as diet and exercise, have been linked to pediatric obesity. However, relatively few studies have considered them simultaneously, as a pattern. To investigate the associations between students' lifestyle and overweight, general, and abdominal obesity, an a priori Mediterranean lifestyle index (ie, MediLIFE-index) was created.

Schoolteachers' Nutrition Knowledge, Beliefs, and Attitudes Before and After an E-Learning Program.

Objective: Το explore teachers' nutrition knowledge, beliefs, and attitudes and to examine the effectiveness of an electronic learning (e-learning) program in teachers' nutrition knowledge.

Design: Cross-sectional and experimental design.

Setting: The study took place in Greece, while schoolteachers were invited by e-mail.

Concomitant Associations between Lifestyle Characteristics and Physical Activity Status in Children and Adolescents.

Background: To examine the concomitant associations between physical activities (PA) and lifestyle factors in a representative sample of children and adolescents.

Study Design: Cross-sectional, observational study.

Methods: Population data were derived from a school-based health survey carried out in 2015 on 177,091 (51% boys) Greek children aged 8 to 17 yr old.

Breakfast skipping in Greek schoolchildren connected to an unhealthy lifestyle profile. Results from the National Action for Children's Health program.

Aim: The aim of the present study was to examine prevalence and correlates of skipping breakfast in a representative sample of children and adolescents.

Methods: Cross-sectional, observational study. Population data derived from a school-based health survey carried out in 2015 on 177 091 Greek children aged 8-17 years.

Insufficient Sleep Duration Is Associated With Dietary Habits, Screen Time, and Obesity in Children.

Study Objectives: To examine sleep duration and the association between insufficient sleep duration and life- style factors in a representative sample of Greek children and adolescents.

Methods: Population data derived from a school-based health survey carried out in spring 2015 on 177,091 children (51% male) aged 8 to 17 years (participation rate was approximately 40% of the total population). Dietary habits, sleeping hours (weekdays and weekend), physical activity status, and sedentary activities were assessed through electronic questionnaires completed at school with assistance of teachers.

Association between fast-food consumption and lifestyle characteristics in Greek children and adolescents; results from the EYZHN (National Action for Children's Health) programme.

Objective: To examine the prevalence of fast-food consumption and the association between fast food and lifestyle factors in a representative sample of children and adolescents.

Design: Cross-sectional, observational study. Fast-food consumption and dietary habits were evaluated using questionnaires (KIDMED index).

Association of cardiorespiratory fitness levels with dietary habits and lifestyle factors in schoolchildren.

This study examined the association between cardiorespiratory fitness (CRF) levels and lifestyle factors in a representative sample of Greek schoolchildren. In 2015, a health survey was carried out in 177 091 participants 8-17 years of age. Dietary habits, sleeping hours, physical activity (PA), and sedentary activities were assessed through self-completed questionnaires.

Current data in Greek children indicate decreasing trends of obesity in the transition from childhood to adolescence; results from the National Action for Children's Health (EYZHN) program.

Introduction: The aim of the study is to present the most recent estimates of obesity (total and central) prevalence in Greek children and associated risk factors.

Methods: Population data are derived from a yearly, school-based health survey polled in 2015 on 336,014 (51% boys) children aged 4 to 17 years old from almost 40% of all schools of primary and secondary education in Greece. Anthropometric and physical fitness measurements were obtained by trained investigators.

Poor dietary habits in Greek schoolchildren are strongly associated with screen time: results from the EYZHN (National Action for Children's Health) Program.

Background/objectives: To investigate adherence to the Mediterranean diet (MD) and the relationship between MD and lifestyle factors in a representative sample of Greek school children.

Subjects/methods: The data derived from 232,401 (51% boys) children aged 8 to 17 years old who participated in a health survey (2015). Physical fitness (PF) and anthropometric estimations were obtained by trained investigators.

Association of Anthropometric and Lifestyle Parameters with Fitness Levels in Greek Schoolchildren: Results from the EYZHN Program.

Objective: The aim of the study was to evaluate physical fitness (PF) and identify its anthropometric and lifestyle determinants in a sample of Greek schoolchildren.

Methods: The study sample consisted of 335,810 schoolchildren (♂: 51.3%, 6-18 years old).

Establishing cross-sectional curves for height, weight, body mass index and waist circumference for 4- to 18-year-old Greek children, using the Lambda Mu and Sigma (LMS) statistical method.

Background: We sought to establish cross-sectional curves for body weight, height, body mass index (BMI), and waist circumference for 4- to 18-year-old Greek boys and girls, using the empirical distribution and the Lambda Mu and Sigma (LMS) statistical method.

Methods: From March 2014 to May 2014, a total of 473,837 boys and girls aged 4 to 18 years who attended school in Greece were enrolled. The studied sample was representative, in terms of age-sex distribution and geographical region.

Physical fitness normative values for 6-18-year-old Greek boys and girls, using the empirical distribution and the lambda, mu, and sigma statistical method.

The aim of the this study was to establish age- and gender-specific physical fitness normative values and to compare percentiles and Z scores values in a large, nationwide sample of Greek children aged 6-18 years. From March 2014 to May 2014, a total of 424,328 boys and girls aged 6-18 years who attended school in Greece were enrolled. The studied sample was representative, in terms of age-sex distribution and geographical region.

Prevalence and lifestyle determinants of central obesity in children.

Purpose: Central obesity is a strong risk factor for metabolic disorders and cardiometabolic diseases in children and adolescents. The aim of the present study was to evaluate the prevalence of central obesity and to determine its cross-sectional association with lifestyle habits in a sample of school-aged children in Greece.

Methods: The study sample consisted of 124,113 children (9.

Inverse but independent trends in obesity and fitness levels among Greek children: a time-series analysis from 1997 to 2007.

Objective: We examined secular trends in physical fitness and BMI status in 8- to 9-year-old Greek children during an 11-year period (1997-2007).

Methods: Population data derived from a yearly health survey performed in over 85% of Greek schools. Anthropometric measurements and physical fitness tests from 651,582 children were analyzed.

Elevated total and central adiposity and low physical activity are associated with insulin resistance in children.

The aim of this study was 2-fold: (1) to examine insulin resistance, blood lipid levels, and inflammatory markers in 9- to 11.5-year-old obese and lean children and (2) to identify factors that influence insulin resistance in this cohort of youths. Body mass index, skinfold thickness, waist circumference, physical activity (4-day triaxial accelerometer), cardiorespiratory fitness (submaximal bicycle ergometer test), and dietary intake (3-day food records) were evaluated in 27 obese and 27 lean boys and girls.

Effect of eating frequency on body composition in 9-11-year-old children.

The aim of this study was twofold: a) to examine the association between eating frequency and body composition in children, and b) to identify possible factors that may explain this relationship. Body composition (anthropometry) and dietary intake (3-day food records) were assessed in a cohort of 151 children. After excluding the underreporters (n = 20), data from 131 children (66 boys and 65 girls) aged 9.

Short-term predictors of abdominal obesity in children.

Background: The aim of this study was to examine the short-term tracking of abdominal adiposity in children.

Methods: A total of 918 children (477 boys) aged 6-12 years at baseline were followed-up for 2 years. Central obesity was assessed by waist circumference (WaistC), whereas body fat distribution by waist-to-hip ratio.

Central and total adiposity are lower in overweight and obese children with high cardiorespiratory fitness.

Objective: To examine the influence of cardiorespiratory fitness on total and truncal fatness in children. It was hypothesised that high cardiorespiratory fitness would result in lower total and central obesity.

Design: Observational cohort study.