| WHO | World Health Organization |
| CLHLS | Chinese Longitudinal Healthy Longevity Survey |
| BADL | Basic activities of daily living |
| IADL | Instrumental activities of daily living |
| BMI | Body mass index |
| CVD | Cardiovascular disease |
| DDS | Dietary diversity score |
| CDD | Change in dietary diversity |
| OR | Odds ratio |
| 95%CI | 95% confidence intervals |
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