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High blood pressure variability predicts 30-day mortality but not 1-year mortality in hospitalized elderly patients.

High blood pressure variability predicts 30-day mortality but not 1-year mortality in hospitalized elderly patients.
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Weiss A, Rudman Y, Beloosesky Y, Akirov A, Shochat T, Grossman A,


Weiss A, Rudman Y, Beloosesky Y, Akirov A, Shochat T, Grossman A, (click to view)

Weiss A, Rudman Y, Beloosesky Y, Akirov A, Shochat T, Grossman A,

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Blood pressure 2017 03 07() 1-5 doi 10.1080/08037051.2017.1300859
Abstract
BACKGROUND
The association of blood pressure (BP) variability (BPV) in hospitalized patients, which represents day-to-day variability, with mortality has been extensively reported in patients with stroke, but poorly defined for other medical conditions.

AIM AND METHOD
To assess the association of day-to-day blood pressure variability in hospitalized patients, 10 BP measurements were obtained in individuals ≥75 years old hospitalized in a geriatric ward. Day-to-day BPV, measured 3 times a day, was calculated in each patient as the coefficient of variation of systolic BP. Patients were stratified by quartiles of coefficient of variation of systolic BP, and 30-day and 1-year mortality data were compared between those in the highest versus the lowest (reference) group.

RESULTS
Overall, 469 patients were included in the final analysis. Mean coefficient of variation of systolic BP was 12.1%. 30-day mortality and 1-year mortality occurred in 29/469 (6.2%) and 95/469 (20.2%) individuals respectively. Patients in the highest quartile of BPV were at a significantly higher risk for 30-day mortality (HR =4.12, CI 1.12-15.10) but not for 1-year mortality compared with the lowest BPV quartile (HR =1.61, CI 0.81-3.23).

CONCLUSIONS
Day-to-day BPV is associated with 30-day, but not with 1-year mortality in hospitalized elderly patients.

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