ECTS Abstracts (2015) 1 P270

The Relationship between Eating Behaviour and Bone Mineral Content in Japanese Children

Kumiko Ohara1,2, Katsuyasu Kouda3, yuki Fujita3, Tomoki Mase4, Chiemi Miyawaki5, Katsumasa Momoi6, Yoshimitsu Okita7 & Harunobu Nakamura1

1Graduate School of Human Development and Environment, Kobe University, Kobe, Japan; 2Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan; 3Department of Public Health, Kinki University Faculty of Medicine, Osaka-Sayama, Japan; 4Department of Childhood Education, Kyoto Seibo College, Kyoto, Japan; 5Department of Early Childhood Education, Heian Jogakuin (St.Agnes’) College, Takatsuki, Japan; 6Tokushima Bunri University, Tokushima, Japan; 7Graduate School of Science and Technology, Shizuoka University, Hamamatsu, Japan.

Background: In previous, eating behaviour has been investigated in studies focusing on a desire for thinness or body shape. However, relation between eating behaviour and body composition has not been studied. In the present study, we investigated the relationship between eating behaviour and whole body bone mineral content (BMC) among Japanese children.

Methods: The subjects were 504 children in 4 elementary schools and 2 junior high schools in Japan. Among these, we obtained cross-sectional data from 401 children (198 boys and 203 girls; age, 10-14 years old) in September and October in 2013. Eating behaviour was assessed by the Japanese version of the Dutch Eating Behaviour Questionnaire for children (DEBQ-C). The DEBQ-C is a 21-item self-rated questionnaire and is divided into three subscales: restrained eating (7 items), emotional eating (7 items), and external eating (7 items). BMC was measured using a single dual-energy X-ray absorptiometry scanner. This study was approved by the internal review board.

Results: In boys, BMC showed positive relationship with a score for external eating of DEBQ-C (r=0.222, p=0.002). On the other hand, in girls, BMC showed positive relationships with a score for restrained eating and emotional eating of DEBQ-C. (restrained eating, r=0.154; P=0.028; emotional eating, r=0.146, p=0.037).

Conclusion: Gender difference was shown in relationship between eating behaviour and BMC.

Disclosure: The authors declared no competing interests. Grant-in-Aid for Scientific Research (B) No. 24370101.

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