What is a normal weight for a child? From which minimum or maximum number displayed on the scale do you have to worry about their health? What are the signs that need to alert parents? Is the epidemic of overweight and obesity among young people progressing in France?
A report published Thursday by Public Health has chosen to compile the results of several surveys conducted in 2000, 2007 and 2016 with children aged 7 to 9, enrolled in CE1 and CE2 in randomly selected schools throughout the metropolitan area.
Without wishing to confirm, the conclusions of this study establish three major trends:
-The phenomenon of obesity curbed in boys
"In 2016, 18.7% of girls and 14.4% of boys were overweight (including obesity), with the gap between girls and boys being significant for the first time 2000 and 2007. The prevalence of obesity was also significantly higher among girls (5.2%) than among boys (3.2%). sity) was confirmed for girls (21% in 2007), while a significant drop was observed among boys (18% in 2007), "says the document. With this drop from 18% to 14.4% in 9 years, we can say that the downward trend is significant.
-The phenomenon of obesity progresses in girls
"The gap between girls and boys in the prevalence of overweight (including obesity) was 2 points in 2000 (19.8 versus 17.6%) , 3 points in 2007 (21.0 versus 18.0%) and 4 points in 2016 (18.7 versus 14.4%), although the study workforce, which is larger in 2016, explain in part the fact that this gap has become significant, it is nonetheless true that the difference between girls and boys, overweight, has widened as these years "estimates the report. Thus, overweight has stabilized for girls (from 21% in 2007 to 18.7% in 2016) while obesity has increased (from 4.5% in 2007 to 5.5% in 2016). 19659004] -The phenomenon of thinness clearly increased in girls
Another notable phenomenon: thinness. It concerned 12.7% of children, 2.7% of whom were thin, without any significant distinction according to sex. However, thanks to comparative studies (ENNS-2006 and Esteban-2015), an increase in the prevalence of thinness has been observed among girls: from 9.5% in 2007 to 13.7% in 2016, especially for girls. age groups between 6 and 10 years old and between 11 and 14 years old. On all girls aged 6 to 17, a significant increase in thinness is notable, rising from 8% in 2006 to 14% in 2015.
"Of course, this is not the case here, for the great majority of these girls, of a state of thinness at the level of pathological thinness, but this evolution nevertheless requires to be concerned, to have in mind this state of affairs in the conduct of policies that should be put in place in terms of bodybuilding, and to continue the analyzes on the possible factors associated with this thinness "concludes the study.
Obesity: a relationship with precocious puberty?
According to the report of Public health no explanation for the growing obesity epidemic in girls but declining in boys is officially advanced today in light of the numbers presented. "Gender-disaggregated analyzes will be needed to identify factors associated with possibly different overweight between girls and boys, which will help to understand why prevention messages may be better understood, better applied, or even more appropriate for boys. that girls "write the authors.
However, another reason could explain the appearance of this gap between girls and boys according to the document:" It is the phenomenon of early puberty that would seem more marked Even though this subject is still poorly documented, particularly in France, the observations of some clinicians suggest that the age of onset of puberty may be advancing in some girls, before the age of 8. In boys, pubertal precocity is observed before the age of 9. These age differences between girls and boys in the onset of puberty, e t the fact that the reference curves of BMI (the body mass index, Ed) do not take into account this new phenomenon of pubertal precocity, could possibly and partially explain the differences in body size that seem to appear between girls and the boys. "