Table 3. Epidemiological studies of hypertension in the elderly and cognition.
| Study name | n, age (years) | Study period | Outcomes | BP measures | Covariates | Associations with cognitive tasks |
|---|---|---|---|---|---|---|
| HYVET75 and HYVET-COG76–78 | 3,763, >80 | 32 years follow up | Dementia, Hachinski ischemic scale, CT scan | Systolic BP 160–200 mmHg | D, RF, creatinine | Lower MMSE score associated with HTN, female sex, lower education, and comorbidities |
| COGNIPRES80 | 1,579, >60 | Cross-sectional | MMSE, 12.3% MCI | HTN Antihypertensive medication | D | Lower MMSE score associated with HTN and poor compliance with antihypertensive therapy |
| Northern Manhattan81 | 918, >75–80 | 4.7 years follow-up | MCI | HTN Antihypertensive medication | D, RF, stroke | HTN associated with increased risk of all-cause MCI and nonamnestic MCI, but not associated with amnestic MCI |
Abbreviations: BP, blood pressure; COGNIPRES, Cognitive function and blood pressure control; D, demographic variables; HTN, hypertension (>140/90 mmHg); HYVET, Hypertension in the Very Elderly Trial; HYVET-COG, HYVET cognitive function assessment; MCI, mild cognitive impairment; MMSE, minimental state examination; RF, risk factors (BMI, diabetes mellitus, HTN, cholesterol, smoking).