European Respiratory Society

Figure 4

Fri, 2021-07-09 16:03 -- admin
Summary: 
Observed positive predictive value (post-test probability of successful outcome) for respiratory frequency/tidal volume ratio (fR/VT) plotted against pre-test probability of weaning success. Studies 5, 6, 11, 18a, 18b and 24 include measurements of Bayes' formula obtained during pressure support. The study number refers to the study as cited in Tobin and Jubran [9]. Studies 14 and 21 include measurements obtained in paediatric patients. Studies 7, 18a, 18b and 28 used fR/VT threshold values <65. •: studies included in the American College of Chest Physicians (ACCP) Task Force meta-analysis [18]; ○: studies undertaken after publication of the ACCP Task Force report; –––: curve based on the sensitivity and specificity originally reported by Yang and Tobin [5] and Bayes' formula for 0.01 unit increments in pre-test probability between 0.00 and 1.00; ·········: upper and lower 95% confidence intervals for the predicted relationship of the positive predictive values against pre-test probability. Data taken from [9].
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Figure
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Normal
Slug: 
F54
Highwire: Type: 
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