2025 Volume 74 Issue 2 Pages 181-183
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 dishes)’ were significantly associated with changes in vegetable intake. A longitudinal study using health and nutrition survey data in the town suggested that individual dietary behavior and socio-economic factor influence the changes in vegetable intake.
