Skip to main content
. Author manuscript; available in PMC: 2017 Aug 1.
Published in final edited form as: Alzheimers Dement. 2016 Apr 29;12(8):890–899. doi: 10.1016/j.jalz.2016.03.012

Table 2.

Weighted* time-varying patterns of measured blood pressure among eligible ARIC-NCS participants

Visit 1
to Visit 4
(~24 to ~15
years prior to
MRI)		 Visit 4
to Visit 5 (~15
years prior to
concurrent
with MRI)		 Visit 1 to
Visit 5 (~24
years to
concurrent
with MRI)
Mean (25th, 75th percentile) or %
Within-person change in mmHg:
  Systolic blood pressure 8 (−1, 16) 7 (−7, 19) 15 (2, 27)
  Diastolic blood pressure −1 (−8, 4) −5 (−13, 2) −6 (−14, 2)
  Pulse pressure 10 (1, 16) 12 (2, 21) 21 (12, 29)
Pattern of Measured Blood Pressure
    Hypertensive to Hypotensive <1% 4% 2%
    Normo/hypotensive to Hypotensive 10% 24% 26%
    Hypertensive to Normotensive 4% 6% 3%
    Normo/hypotensive to Normotensive 70% 43% 45%
    Always Hypertensive 4% 6% 3%
    Normo/hypotensive to Hypertensive 11% 17% 20%

Abbreviations: ARIC-NCS Atherosclerosis Risk in Communities Neurocognitive Study

*

Weighting was used to account for the sampling strategy used to select Visit 5 participants for MRI.