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Table 3 Center of Pressure (CoP) parameters in both anterior-posterior (AP) and medial-lateral (ML) direction averaged between 30 and 180 s for both the group of patients with OHcontinuous (n = 22) and non-OHcontinuous (n = 16)

From: Blood pressure change does not associate with Center of Pressure movement after postural transition in geriatric outpatients

 

OHcontinuous

Non-OHcontinuous

Median [IQR]

Median [IQR]

p-value

AP

Mean amplitude (cm)

0.56 [0.31 – 0.82]

0.41 [0.31 – 0.52]

.60

Amplitude variability (cm)

0.35 [0.25 – 0.54]

0.31 [0.23 – 0.46]

.39

Range (cm)

1.85 [1.28 – 2.70]

1.60 [1.07 – 2.29]

.36

Mean velocity (cm/s)

4.87 [4.13 – 5.26]

4.56 [4.17 – 5.58]

.60

Velocity variability (cm/s)

7.20 [6.17 – 7.91]

6.86 [6.11 – 8.34]

.60

ML

Mean amplitude (cm)

0.55 [0.43 – 0.77]

0.55 [0.42 – 0.61]

.44

Amplitude variability (cm)

0.54 [0.40 – 0.77]

0.47 [0.37 – 0.62]

.29

Range(cm)

2.66 [1.98 – 3.69]

2.18 [1.87 – 2.97]

.29

Mean velocity (cm/s)

3.64 [3.05 – 4.19]

3.39 [2.81 – 3.70]

.12

Velocity variability (cm/s)

5.13 [4.59 – 5.91]

4.95 [3.94 – 5.20]

.10

  1. All parameters are given as median [IQR]. p-values obtained with Mann-Whitney-U test
  2. OH continuous orthostatic hypotension; continuously measured, IQR interquartile range, AP anterior-posterior, ML medial-lateral
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