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Table 2 Rapid shallow breathing index value measured by Wright spirometer and the average rapid shallow breathing index value displayed by the ventilator at different time points

From: Validation of rapid shallow breathing index displayed by the ventilator compared to the standard technique in patients with readiness for weaning

RSBIstandard, breaths/min/L Median [interquartile range] Average RSBIvent at different time points, breaths/min/L Median [interquartile range] P value
  66.0 [38.2–90.0] At 0–15 85.5 [58.5–118.5] < 0.001
  66.0 [38.2–90.0] At 0–30 81.7 [61.0–114.7] < 0.001
  66.0 [38.2–90.0] At 0–45 79.5 [55.3–112.3] < 0.001
  66.0 [38.2–90.0] At 0–60 79.2 [57.4–113.0] < 0.001
  1. Data are presented as median [interquartile range]
  2. RSBIstandard rapid shallow breathing index measured by Wright spirometer, RSBIvent rapid shallow breathing index displayed by the ventilator