An Italian study correlated some risk factors with the prevalence of overweight or obesity in Italian students.

Italy has a large number of children affected by obesity. A recent study published its results on the prevalence of obesity and overweight in 58,928 students aged 11, 13 and 15 years from Italy in 2009-2010. The data was collected through self-reported questionnaires.
The study found that boys are more likely to be overweight or obese as compared to girls in all the age groups studied.
According to the study, there are geographical differences between the prevalence of obesity in the above age groups between the Northern and Southern regions within Italy, the prevalence being double in the South than in the North.
Students who skip their breakfast had a higher prevalence of being overweight or obese as compared to those who had more than just a glass of fruit juice or milk at breakfast. Skipping breakfast has been earlier associated with more frequent snacking and overeating later during the day, which only adds up to the calorie intake.
The study also tried to correlate the prevalence of overweight including obesity with the educational qualifications of the parents. They found that obesity and overweight were less in those children whose parents were better educationally qualified.
Reference
1.Lazzeri G. Overweight among students aged 11–15 years and its relationship with breakfast, area of residence and parents’ education: results from the Italian HBSC 2010 cross-sectional study.