離島住民の野菜摂取変化量に影響を及ぼす要因の検討

町の健康増進施策に向けた健康・栄養調査データ分析

抄録

This study aims to examine the individuals' dietary behavior, dietary knowledge and socio-economic factors that influence the longitudinal change in vegetable intake. Data from health and nutrition surveys in Nishinoshima town, a remote island in Shimane prefecture, at the time of formulating health promotion plan (2014) and the mid-term evaluation (2021) were used. A total of 135 men and women aged 20s to 70s who responded to both surveys were included in the analysis. Paired statistical tests were used to compare the characteristics and vegetable intake of the subjects at the two time points. A multiple regression analysis was used to examine the factors that influenced the changes in vegetable intake between 2014 and 2021. A significant reduction in vegetable intake was observed between 2014 and 2021. A multiple regression analysis showed that changes in ‘family composition (from living together to living alone)’ and ‘frequency of a well-balanced diet (combination of staple food, main, and side disdishes)ʼ were significantly associated with changes in vegetable intake. A longitudinal study using health and nutrition survey data in the town sug-gested that individual dietary behavior and socio-economic factor influence the changes in vegetable intake.