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Table 4 Variables associated with failure of prolonged weaning and failure of spontaneous breathing trial—results of binary logistic regression model

From: Variables predicting weaning outcome in prolonged mechanically ventilated tracheotomized patients: a retrospective study

Variables Failure of prolonged weaning Failure of first SBT
OR (95% CI) P value OR (95% CI) P value
Gender (male) 0.532 (0.291–0.973) 0.040 0.401 (0.216–0.745) 0.004
Obesity (BMI > 30 kg/m2) 2.595 (1.210–5.562) 0.014 n.s.
COPD 3.209 (1.563–6.589) 0.002 n.s.
LTC-MP 3.470 (1.067–11.284) 0.039 3.017 (1.027–8.862) 0.046
PaCO2 on MV 1.101 (1.034–1.173) 0.003 1.157 (1.083–1.235) < 0.001
Failed first SBT 4.702 (2.250–9.825) < 0.001 n.a.
  1. SBT spontaneous breathing trial, OR odds ratio, 95% CI 95% confidence interval, n.s. not significant, BMI body mass index, COPD chronic obstructive pulmonary disease, LTC-MP mechanical power normalized to dynamic lung-thorax compliance, n.s. not significant, MV mechanical ventilation, n.a. not applicable