Table 3.
No. | No Antihypertensive Medication | No. | Consistent Antihypertensive Medication | |||||||
---|---|---|---|---|---|---|---|---|---|---|
No. of Events | HR* | 95% CI | P Value | No. of Events | HR* | 95% CI | P Value | |||
Dementia | 3111 | 70 | 3478 | 92 | ||||||
BPV (continuous) | 0.97 | 0.93–1.02 | 0.29 | 1.06 | 1.03–1.09 | <0.0001 | ||||
BPV tertile | ||||||||||
Tertile 1 | 1055 | 28 | Ref. | 1178 | 15 | Ref. | ||||
Tertile 2 | 1019 | 16 | 0.58 | 0.31–1.08 | 0.09 | 1146 | 31 | 2.11 | 1.14–3.91 | 0.02 |
Tertile 3 | 1037 | 26 | 0.83 | 0.48–1.43 | 0.51 | 1154 | 46 | 2.97 | 1.65–5.34 | <0.0001 |
Cognitive decline | 2665 | 377 | 2922 | 439 | ||||||
BPV (continuous) | 0.99 | 0.97–1.01 | 0.44 | 1.02 | 1.01–1.04 | 0.002 | ||||
BPV tertile | ||||||||||
Tertile 1 | 906 | 128 | Ref. | 992 | 124 | Ref. | ||||
Tertile 2 | 875 | 120 | 1.03 | 0.80–1.32 | 0.84 | 959 | 125 | 1.05 | 0.82–1.35 | 0.71 |
Tertile 3 | 884 | 129 | 1.02 | 0.79–1.30 | 0.89 | 971 | 190 | 1.68 | 1.34–2.12 | <0.0001 |
BPV indicates blood pressure variability; and HR, hazard ratio.
Adjusted for age, average systolic blood pressure, education, diabetes mellitus, depression, body mass index, and statin medications.