Developing a risk assessment tool for insulin resistance in European adolescents: the HELENA-IR score.

Objectives: To develop and validate an easy-to-use screening tool for identifying adolescents at high-risk for insulin resistance (IR).

Methods: Α total of 1,053 adolescents (554 females), aged 12.5 to 17.

Cardiorespiratory fitness is associated with body composition and insulin resistance in European adolescents: HELENA study.

Background: The present study aimed to examine the independent association between cardiorespiratory fitness, sedentary time and insulin resistance in European adolescents.

Methods: A subset (N.=1097) of a large multicenter European study (HELENA-CSS study) was used in the present study.

Prevalence of obesity in preschool Greek children, in relation to parental characteristics and region of residence.

Background: The aim of this retrospective cohort study was to record the prevalence of overweight and obesity in relation to parental education level, parental body mass index and region of residence, in preschool children in Greece.

Methods: A total of 2374 children (1218 males and 1156 females) aged 1-5 years, stratified by parental educational level (Census 1999), were examined from 105 nurseries in five counties, from April 2003 to July 2004, Weight (kg) and height (cm) were obtained and BMI (kg/m2) was calculated. Both the US Centers for Disease Control (CDC) and the International Obesity Task Force (IOTF) methods were used to classify each child as "normal", "at risk of overweight" and "overweight".