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Table 2 Comparisons of BIS data by clinical conditions

From: Comparison of Bispectral Index™ values during the flotation restricted environmental stimulation technique and results for stage I sleep: a prospective pilot investigation

 

BIS

p value

%difference

Cohen’s d

Awake state

96.6 ± 1.7

   

Float session-1

84.3 ± 4.5

< 0.0001

12.7

3.6

Awake state

96.6 ± 1.7

   

Float session-2

82.3 ± 4.1

< 0.0001

14.8

4.6

Relaxation induction

82.8 ± 6.8

   

Float session-1

84.3 ± 4.5

0.1548

1.8

0.3

Relaxation induction

82.8 ± 6.8

   

Float session-2

82.3 ± 4.1

0.6256

0.5

0.1

Sleep stage I

86.0 ± 3.5

   

Float session-1

84.3 ± 4.5

0.0292

1.9

0.4

Sleep stage I

86.0 ± 3.5

   

Float session-2

82.3 ± 4.1

< 0.0001

4.3

1.0

Float session-1

84.3 ± 4.5

   

Sleep stage II

66.2 ± 4.0

< 0.0001

21.5

4.3

Float session-2

82.3 ± 4.1

   

Sleep stage II

66.2 ± 4.0

< 0.0001

19.6

4.0

Float session-1

84.3 ± 4.5

   

Sleep stages III–IV

45.1 ± 8.9

< 0.0001

46.5

5.6

Float session-2

82.3 ± 4.1

   

Sleep stages III–IV

45.1 ± 8.9

< 0.0001

45.2

5.4

  1. BIS Bispectral Index™