Trends of overweight and obesity among children in Tijuana, Mexico.

The objectives of this study were to compare the trends of obesity from 2001-02 to 2006-07 in school children of Tijuana, Mexico and to investigate the relationship with the child's gender and type of school attended. Bietapic random sample was selected by cluster of schools and groups. Results of the 1684 children from 6-14 years of age assessed showed an overall prevalence of obesity (> 95(th)) of 28%. An overall increase of overweight and obesity of 7-percentage points (p=0.0003), from 41 to 48%, being higher among boys and younger girls. Prevalence of obesity was higher among boys and children from private schools.