Data Sheet 1_Association of joint trajectories of dietary diversity and physical activity

A longitudinal dataset from the Chinese Longitudinal Healthy Longevity Survey tracks 1,826 older adults over four waves from 2008 to 2018. It contains joint trajectory patterns for dietary diversity and physical activity and their association with cognitive function outcomes measured by MMSE scores. Author Chuang Shen published the analysis under a CC-BY-4.0 license on figshare.

Use Cases

• Modeling risk factors for cognitive impairment based on joint lifestyle trajectory groups.
• Analyzing the longitudinal interaction between dietary diversity and physical activity based on the study's cross-classified groups.
• Training predictive models for cognitive decline using baseline characteristics and behavioral trajectories.
• Conducting sensitivity analyses for epidemiological findings based on the study's modified Poisson and linear regression methods.

Strengths

• Includes data from 1,826 participants across four survey waves spanning 10 years (2008-2018).
• Provides specific risk ratios (RR) and beta coefficients for cognitive outcomes associated with distinct joint trajectory groups.
• Uses established cognitive assessment metrics (education-stratified MMSE scores).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count for the underlying raw data is unknown, which may limit suitability assessment.
• The primary file is a DOCX document (676.2 KB), which likely contains analysis results rather than the raw, structured dataset.

Provenance

Source

Chinese Longitudinal Healthy Longevity Survey

Collection Method

Prospective cohort study using latent class growth analysis and regression models.

Time Range

2008 to 2018

Freshness

Last updated 2026-04-16 04:20:25; freshness should be verified.

Geography

China