若年女性のやせの問題が重要視されている現状から、女子学生の肥満度と生活習慣、自覚症状との関連について明らかにすることを目的とし、女子学生1040名を対象にアンケート調査を行い、以下の結果が得られた。1)対象者の体型は"やせ"群は162名(19.6%)、"普通"群は646名(78.1%)、"肥満"群は19名(2.3%)であった。生活習慣で有意差が認められた項目は朝食、牛乳・乳製品の摂取頻度、栄養成分表示の必要性、アルバイト、運動の頻度、ダイエット経験、ストレスの感じ方であった。これらの有意差は"やせ"群と"普通"群の間で多く認められた。2)自覚症状の訴え率は、"やせ"群では身体違和感・だるさ・女子大生によくみられる不定愁訴に関する因子に高かった。自覚症状得点は"やせ"群>"肥満"群>"普通"群であり、"やせ"群と"普通"群の間で有意差が認められた。BMIが「22～24(kg

m^2)」の得点が最も低く、BMIが大きくなっても小さくなっても得点は高くなるU字型、J字型の関係がみられた。3)生活習慣は3つのクラスターに分類され、クラスター1は生活習慣不良派(34.2%)、クラスター2は食良好運動不足派(35.9%)、クラスター3は生活習慣良好派(29.9%)と解釈された。クラスター1、2では"やせ"群の割合が高かった。自覚症状31項目のうちクラスター間で有意差がみられた項目は17項目で、集中思考困難・活力低下・だるさに関する因子がクラスター1に高かった。自覚症状得点はクラスター1>2>3であった。以上のように肥満度と生活習慣、自覚症状との間には関連性が認められた。

To clarify the relationships among obesity level, lifestyle and subjective symptoms as a reflection of the health problems of young thin women, a questionnaire survey of 1040 female students was carried out. The following results were obtained: 1) Regarding the physique (BMI), 162 students were categorized as thin (19.6%), 646 as normal (78.1%) and 19 as obese (2.3%). Significant differences in the frequency of subjects who ate breakfast, consumption of milk and daily products, needs on nutritional information displays, frequency of subjects with a part-time job, frequency of physical exercise, past history of dieting and stress levels were found between the thin and normal subjects. 2) The ratio of ailments with subjective symptoms to the factors of physical incongruity, fatigue and malaise often observed in female students was higher in the thin subjects than in the normal and obese subjects. The scores for the subjective symptoms were in the order of thin>obese>normal subjects, with a significant difference between the thin and normal subjects. When the BMI was 22-24, the scores were low, and a relationship between the BMI and the score was observed as a U or J character-type, regardless of the BMI. 3) Lifestyle was classified into three clusters: 1, a defective lifestyle (34.2%); 2, an excellent diet but lack of physical activity (35.9%); and 3, an excellent lifestyle (29.9%). The ratios of thin females were high in clusters 1 and 2. There was a significant difference among the clusters in 17 of the 31 subjective symptoms, and factors such as difficulty in concentration, decreased vitality and fatigue were high in cluster 1. The scores for the subjective symptoms were in the order of cluster 1>2>3. Accordingly, relationships were confirmed among obesity level, lifestyle and subjective symptoms in female students.

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国立情報学研究所で電子化