Korean J Nutr KJN Korean Journal of Nutrition 0367-6463 2005-7121 The Korean Nutrition Society 10.4163/kjn.2009.42.8.682 Original Article Relation between Dietary Habit and Nutrition Knowledge, and Attention Deficit Hyperactivity Disorder (ADHD) in the Middle School Students in Seoul Choi Jin Young 1 Lee Sang Sun 2 Department of Nutrition Education, The Graduate School of Education, Hanyang University, Seoul 133-791, Korea. Department of Food and Nutrition, Hanyang University, Seoul 133-791, Korea. To whom correspondence should be addressed. (leess@hanyang.ac.kr) 12 2009 31 12 2009 42 8 682 690 24 08 2009 16 09 2009 25 11 2009 © 2009 The Korean Nutrition Society 2009

The purpose of this study is to analyse the relation between dietary habit and nutrition knowledge, and ADHD (Attention Deficit Hyperactivity Disorder) in the middle school students in Seoul, Korea. Total study subjects were 631 students, 51.8% was male and 48.2% was female. In the assessment of predisposition of ADHD, 93% was normal group and 7% was ADHD group. As for the gender in ADHD group, 56.8% was male and 43.2% was female. Normal group showed the higher breakfast consumption rate than ADHD group (p < 0.05). Dietary habits were better in normal group than ADHD group. Nutrition knowledge scores of normal group was 7.38 out of 15 and scores of ADHD group was 5.77 out of 15 (p < 0.01). The nutrition knowledge score and the dietary habits score showed a positive correlation (p < 0.01). The nutrition knowledge score and snack · meal purchasing frequency showed a negative correlation (p < 0.05). There are significant negative correlation between attention deficit hyperactivity score and nutrition knowledge score (p < 0.01). In conclusion, ADHD group showed lower level of nutrition knowledge and worse dietary habits than the normal group.

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General characteristics of study subjects

NS: Non-significant at α = 0.05, ADHD: Attention Deficit Hyperactivity Disorder

Behaviors of snack and breakfast consumption of subjects

*: p < 0.05. NS: Non-significant at α = 0.05, ADHD: Attention Deficit Hyperactivity Disorder

Eating snack & meal purchasing frequency of the subjects

*: p < 0.05, ***: p < 0.001. NS: Non-significant at α = 0.05, ADHD: Attention Deficit Hyperactivity Disorder

Dietary habit score of the subjects

*: p < 0.05, ***: p < 0.001. NS: Non-significant at α = 0.05, ADHD: Attention Deficit Hyperactivity Disorder

Perceived knowledge and correct knowledge of the subjects

*: p < 0.05. NS: Non-significant at α = 0.05, ADHD: Attention Deficit Hyperactivity Disorder

Nutrition knowledge score of the subjects

*: p < 0.05, **: p < 0.01. NS: Non-significant at α = 0.05, ADHD: Attention Deficit Hyperactivity Disorder

Pearson's correlation coefficients of nutrition knowledge, dietary habits score, snack · meal purchasing frequency, and attention deficit hyperactivity score

*: p < 0.05, **: p < 0.01