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Table 1 Average values of the sway Radius and the Area measured before and after shunt implantation in NPH patients and in the control group in two conditions: eyes open (EO) and eyes closed (EC).

From: Analysis of postural sway in patients with normal pressure hydrocephalus: effects of shunt implantation

  

Control (n = 46)

Before Shunt (n = 9)

After Shunt (n = 9)

P

     

B vs. A

B vs. C

A vs. C

Radius (mm)

EO

4.2 ± 1.4

13.5 ± 4.5

6.2 ± 1.5

0.0039

2.6e-09

0.009

 

EC

4.9 ± 1.7

13.1 ± 3.8

7.9 ± 2.3

0.0078

5.2e-07

0.015

p (EO vs. EC)

 

2.1e-04

n.s

0.019

   

Area (cm2)

EO

4.3 ± 3.3

44.7 ± 26.3

10.8 ± 3.8

0.0039

1.5e-08

6.9e-06

 

EC

7.3 ± 7.2

44.6 ± 32.7

20.7 ± 18.7

0.0078

1.5e-08

0.00019

P (EO vs. EC)

2.0e-07

n.s.

0.019

   
  1. B vs. A - the NPH group before vs. after operation; B vs. C and A vs. C - the NPH group before and after operation vs. the control group, respectively; The rows depicted as EO vs. EC show statistical significance for comparisons of the measurements with eyes open vs. eyes closed in each group.
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