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Fig. 2 | Critical Care

Fig. 2

From: Easily identified at-risk patients for extubation failure may benefit from noninvasive ventilation: a prospective before-after study

Fig. 2

The Kaplan-Meier plots of the cumulative reintubation rates within seven days following extubation. The rate of extubation failure (reintubation at day 7) significantly differed between the four groups (p = 0.0165 log-rank test). Among the patients at high-risk, this rate was significantly lower in the NIV cohort (green solid line) than in the control cohort (blue solid line), decreasing from 28 % (23/83) to 15 % (23/150), p = 0.0225 by log-rank test. The difference remained significantly lower after having excluded the 11 patients in the NIV cohort who did not effectively receive NIV: 17 % (23/139) vs. 28 % (23/89), p = 0.0466 log-rank test. By contrast, the rate of extubation failure did not significantly differ during the two periods in patients at low-risk: 10.2 % (5/49) in the control cohort (blue dotted line) vs. 10.7 % (8/75) in the NIV cohort (green dotted line), p = 0.93

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Critical Care

ISSN: 1364-8535