| ATC | Anatomical Therapeutic Chemical (classification system) |
| B | Unstandardised regression coefficient |
| BADL | Basic activities of daily living |
| BMI | Body mass index |
| CIBERFES | Instituto de Salud Carlos III (Spain) |
| IADL | Instrumental activities of daily living |
| ISCIII | Biomedical Research Networking Centre on Frailty and Healthy Ageing (Spain) |
| mg | Milligram |
| MMSE | Mini-Mental State Examination |
| m/s | Metres per second |
| N | Sample |
| p | p-value |
| R2 | R-squared, coefficient of determination |
| SD | Standard deviation |
| WHO | World Health Organization |
| 95% CI | Confidence interval |
| α | Significance level (Type I error rate) |
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