Table 3.
Association of SBP and mean SBP with risk of all-cause dementia.
SBP per 5 mmHg (HR, 95% CI) |
p-value | Mean SBP per 5 mmHg (HR, 95% CI) |
p-value | ||
---|---|---|---|---|---|
Visit 0 | 1.02 (0.99,1.05) | 0.056 | |||
Visit 2 | 1.01 (0.99, 1.03) | 0.495 | 3 years | 1.03 (0.99, 1.06) | 0.053 |
Visit 5 | 1.01 (0.98, 1.03) | 0.662 | 6 years | 1.04 (0.99, 1.08) | 0.061 |
Visit 8 | 1.01 (0.97, 1.04) | 0.699 | 9 years | 1.02 (0.96, 1.07) | 0.559 |
Visit 11 | 1.04 (0.99, 1.09) | 0.055 | 12 years | 1.02 (0.95, 1.10) | 0.555 |
Analyses were adjusted for baseline age, sex, race, education, history of vascular risk factors burden (smoking, hypertension and diabetes mellitus), vascular diseases burden (stroke, heart disease and claudication), and medication use (antihypertensive, cardiac, lipid lowering and mental health medications). Dementia cases were censored before corresponding SBP visits or during mean SBP periods. Abbreviations: SBP: systolic blood pressure; HR: hazard ratios; CI: confidence interval.