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Table 5 Risk factors for weaning failure

From: Mean platelet volume is useful for predicting weaning failure: a retrospective, observational study

Variable NO. of failure/total(%) Univariate analysis Multivariate analysis
Unadjusted OR 95%CI P Adjusted OR 95%CI P
MPV, fl
  ≤ 11.3 24/206(11.7)       
  > 11.3 30/55(54.5) 9.1 4.609–17.969 0.000 8.101 3.622–18.117 0.000
Leukocytes, × 10.9/L
  ≤ 8.9 15/111(13.5)       
  > 8.9 39/142(27.5) 2.445 1.364–5.053 0.003 3.495 1.498–8.154 0.004
CRP, mg/L
  ≤ 67 23/159(14.5)       
  > 67 31/102(30.4) 2.582 1.401–4.756 0.000 2.121 0.987–4.561 0.054
  1. Multivariate logistic regression was performed with covariates including APACHE II score, IMV duration prior to weaning, postoperation, PaCO2, PaO2/FiO2, SPO2, SBP, age, sex, and BMI among 261 patients
  2. Abbreviation: OR Odds Ratio, CI Confidence Interval, MPV Mean Platelet Volume, CRP C-reactive protein