目的︰瞭解國內青少年節食型態，輕型精神疾病與體質指數的關係。方法︰以立意取樣方式，選取桃竹地區一所國中及二所高中，再從中隨機選取共660名學生為研究樣本。每名學生除完成Patton的青少年節食量表（Adolescent Dieting Scale）及CHQ-12兩份問卷外，並紀錄其身高、體重等資料。結果︰共646人完成問卷，男生189人，女生457人。7.9%的男生及28.4%女生有節食情形，其中2.84%女生及1%男生為極端型節食者。本研究中，男女生的節食百分比在年齡層及罹患輕型精神疾病的危險性上均未有統計顯著性。但女生節食者的分佈百分比在體重過輕與體重正常組有極為明顯的差異。結論︰本研究中，女生節食型態與體重有顯著關係。但男女節食型態在年齡分佈上均無差異，節食者罹患輕型精神疾病的危險性並未較高。

　　　　　Objective: This study investigated the prevalence of adolescent dieting in Taoyuan and Hsinchu counties in Taiwan. The relationship between dieting, minor psychiatric morbidity and Body Mass Index was also studied. Methods: The study enrolled 660 junior and senior high school students. Patton's Adolescent Dieting Scale (ADS) was used to assess dieting level, and the Chinese Health Questionnaire was used to determine the presence of minor psychiatric morbidity. Subjects characteristics including age, body height and body weight were also collected. Subjects were considered to be dieters if ADS score was 7 and higher, extreme dieters when ADS score exceeds 15. Results: Dieting habits were identified in 28.4% of girls and 7.9% of boys. 2.84% of girls and 1% boys were extreme dieters. There were no significant difference between male and female dieters in age distribution and CHQ scores. However, female dieters had a 3 to 4 fold higher incidence of underweight to normal body weight cases. Conclusion: Dieting is common practice among the adolescents of Taoyuan and Hsinchu counties. There was no significant difference in age distribution or risk for minor psychiatric morbidity between male and female dieters. However, there was a strong correlation between body weight and dieting in females.