女子高校生における自傷行為―喫煙・飲酒，ピアス，過食傾向との関係

Self-mutilation among Female High School Students：The association with smoking and drinking, piercing, and bulimic tendency

抄録

　女子高校生126名を対象に自記式調査票を用いて，自傷，喫煙・飲酒，過食，ピアスの経験に関する調査を実施した。女子高校生の14.3％に少なくとも1回の「身体を切る」自傷行為の経験があり，6.3％が10回以上の自傷行為の経験があった。また，自傷経験者では，非経験者に比べて，喫煙・飲酒経験，ピアスの経験が有意に多く認められた。さらに，自傷経験者では，過食経験のある者が有意に多く，10回以上の自傷経験者では，非経験者よりも，大食症質問票の得点が有意に高かった。以上より，「自分を傷つけること」「食べ過ぎてしまうこと」「嗜好物質によって気分を変えること」の間には，密接な関係がある可能性が示唆された。

Summary

　Using a self-reporting questionnaire, we examined the association of self-mutilation with smoking and drinking, bulimia, and piercing in female high school students. The subjects were 126 females who were second grade students of a private high school in Kanagawa prefecture. The result of our enquiry was that, 14.3％ of the subjects reported the experience of self-cutting at least once, and 6.3％ of them reported its repetition on more than 10 occasions. The subjects who indulged in self-cutting more frequently also reported episodes of smoking and drinking, piercing, and binge eating more often than those who had never experienced self-cutting. Although no differences were found between the subjects who had or had experienced and without self-cutting in the score of the Bulimia Investigatory Test of Edinburgh (BITE), those who had inflicted self-cutting on themselves on over 10 occasions of showed a higher score on the BITE than those who had not. These findings suggest the association of “self-mutilating behavior,” “eating excessively,” and “changing one's mood by using a psychoactive substance.”