<p>Interaction analysis.</p>

China Health and Retirement Longitudinal Study (CHARLS) data from 2,907 participants, including 556 cases of Severe Airflow Limitation (SAL). The dataset, created by Shuang Deng and last updated in April 2026, contains cross-sectional analysis results on associations between lipid profiles, frailty, and SAL, with subgroup analyses by sociodemographic factors.

Use Cases

• Investigating non-linear thresholds in the association between residual cholesterol and Severe Airflow Limitation based on the described piecewise regression analysis.
• Examining effect modification by education level on lipid-SAL associations based on the interaction analyses mentioned.
• Comparing the prevalence of Severe Airflow Limitation between rural and urban residents based on the reported percentages.
• Analyzing the relationship between the frailty phenotype and respiratory health outcomes based on the reported odds ratios.

Strengths

• Includes data from 2,907 participants from a well-known longitudinal study (CHARLS).
• Analysis includes 556 specific cases of Severe Airflow Limitation (SAL).
• Results present specific statistical thresholds, such as a residual cholesterol threshold of 0.329 mmol/L.
• Subgroup analyses were conducted by age, gender, and education, as described.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data is cross-sectional, limiting causal inference as noted in the description.

Provenance

Source

China Health and Retirement Longitudinal Study (CHARLS)

Collection Method

Cross-sectional study using multivariate logistic regression, piecewise regression, and interaction analyses.

Freshness

Last updated 2026-04-29 17:34:37; freshness should be verified.

Geography

China