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Table 1 BIS values by sleep stage

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

Sleep stage Participants BIS
Stage I
 Benini [11] {#2} 15 88.9
 Dahaba [12] {#4} 10 80.0
 Tung [13] {#35} 17 86.5
  42 86.0 ± 3.5
Stage II
 Benini [11] {#2} 15 63.0
 Dahaba [12] {#4} 10 71.0
  25 66.2 ± 4.0
Stage III–IV
 Benini [11] {#2} 3 33.0
 Benini [11] {#2} 1 16.0
 Dahaba [12] {#4} 10 52.0
 Dahaba [12] {#4} 10 41.0
 Nieuwenhuijs [14] {#25} 10 42.0
 Sleigh [15] {#33} 5 59.0
  39 45.1 ± 8.9
  1. BIS Bispectral Index™