Changes in dietary diversity and subsequent all-cause and cause-specific mortality among Japanese adults: The Japan Collaborative Cohort Study.

ABSTRACT:

Background

Poor dietary habits are a significant changeable factor contributing to negative health effects; however, the connection between variations in dietary diversity over time and mortality remains uncertain. This study aimed to evaluate the association between longitudinal changes in the dietary diversity score (DDS) and mortality in Japanese adults.

Methods

This prospective study included 20,863 adults (13,144 women, 7,719 men) aged 40-79 years from the Japan Collaborative Cohort Study. The DDS was evaluated twice, once at baseline and again 5 years later, using a validated food frequency questionnaire that assessed 33 food items. Participants were classified into four groups based on mean DDS: baseline low DDS/5 years later low DDS (n=7,866; Low/Low group), baseline

SUBMITTER: Watanabe D 

PROVIDER: S-EPMC12237590 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature