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Table 3 Actual time in seconds with 95% CI and approximate upper CI limit time in minutes to achieve each FAS in group Air (n = 97)

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

2.4

49.6 ± 10.9

47.4–51.8

1

1.5

3.0

76.8 ± 16.5

73.5–80.2

1.5

2

3.5

118.5 ± 24.0

113.6–123.3

2

2.5

4.0

171.5 ± 30.5

165.4–177.7

3

3

4.6

226.9 ± 38.4

219.1–234.6

4

3.5

5.1

286.4 ± 48.1

276.7–296.1

5

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