Gender differences in childhood bmi z-score, alimentary behaviour and lifestyle in a sample of 9-11 children

Background. Child overweight and obesity prevalence has risen
substantially in most high-income countries. The prevention of childhood
overweight and obesity is a major public health issue. Childhood
obesity leads to an increased risk of both physical and mental health
consequences,. The aim of this study was to investigate the gender
differences in BMI z-score, eating habits, life style and healthy behaviors
in children
Materials and methods. With an approach so-called “cluster”
method we selected third classes of primary schools. The study was
conducted from September 2016 and May 2017 during a school year.
Information was collected through a questionnaire filled in by the
children with the help of their parents. The biometric data relating to
height in meters and weight in kilograms was obtained through the
questionnaire.
Results. A total of 1122 children were included in the current
study. 33.9% of boys being overweight compared with 27.8% of
girls and 19.1% of boys being obese compared with 12.5% of girls
(p<0.001). There were significant differences between boys and girls
for physical activity (p=0.004), sedentary behaviors (p<0.001), eating
habits (p=0.004).
Discussion. In this study, gender differences were analyzed with
respect to BMI z-score, eating habits, life style and healthy behaviors
in children between 9 and 11 years old. The results of the study confirm
the differences that the scientific literature described. Between boys
and girls there are different habits that on the one hand can determine
differences in the quality of life and future health and on the other
hand can be the key to implementing effective and targeted prevention
interventions.