Table 1. Sociodemographic and clinical variables of the sample (n = 2,508).
| Covariables | n (%) |
|---|---|
| Age ≥ 70 years | 1,349 (53.8) |
| Female | 1,195 (47.7) |
| Education | 394 (15.8) |
| Illiterate | |
| 1–4 years | 1,368 (54.8) |
| ≥ 5 years | 734 (29.4) |
| Hypertension | 1,482 (64.7) |
| Diabetes mellitus | 696 (27.8) |
| Coronary artery disease | 511 (20.4) |
| Congestive heart failure | 422 (16.8) |
| Dyslipidemia | 244 (9.7) |
| Cardiac arrhythmia | 174 (6.9) |
| Stroke | 298 (11.9) |
| Alcohol abuse/alcoholism | 375 (15.0) |
| Tobacco use | 790 (31.5) |
| CDR > 0.5 | 436 (17.5) |
| IQCODE ≥ 3.4 | 446 (17.9) |
CDR > 0.5: clinical dementia rating indicative of cognitive impairment; IQCODE ≥ 3.4: cut-off for the informant questionnaire on cognitive decline in the elderly in the past 10 years.