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Table 2 Actual time in seconds with 95% CI and approximate upper CI limit time in minutes to achieve each FAS in group N2O (n = 102)

From: 1-1-8 one-step sevoflurane wash-in scheme for low-flow anesthesia: simple, rapid, and predictable induction

FAS (%)

FIS (%)

Time (sec)

95%CI (sec)

Approximated upper CI limit time (min)

1

2.2

45.8 ± 9.8

43.9–47.8

1

1.5

2.7

73.5 ± 14.5

70.7–76.4

1.5

2

3.2

116.3 ± 20.4

112.3–120.3

2

2.5

3.8

161.9 ± 23.3

157.3–166.4

3

3

4.4

208.4 ± 30.6

202.4–214.4

3.5

3.5

4.9

258.5 ± 35.0

251.7–265.4

4.5

  1. Data are presented as means ± SD or ranges
  2. FIS inspired concentration of sevoflurane, FAS alveolar concentration of sevoflurane, CI confidence interval