ผลการศึกษาของสำนักระบาดวิทยาระหว่าง

Bureau of Epidemiology, the study of the year 2548 - 2552 of 234,483 students from 24 provinces across the country, the average age is between 16-17 years, male and female students with body mass index (bmi) average similar between from 18.8 to 18.9.

Study of epidemiology between 2548 (2005) – 2552 (2009) from all 234483 students from 24 provinces throughout the country, the average age is between 16-17 years, students, men and women have a body mass index (BMI) was similar between the average 18.8-18.9.

Result of the study of household scale epidemiological studies have shown an association between year B.E. 2548 - 2552 students from all 234,483 people from 24 provinces in the country average age is between 16 - 17 years old man and woman students have a body mass index (BMI) similar average between 18.8 - 18.9