Skip to main content

Table 2 Vital signs, arterial blood gas and laboratory findings before weaning

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

Variable Weaning failure
(n = 54)
Weaning success
(n = 207)
P
Vital signs
 RR, breaths/min 21.4 ± 4.49 19.7 ± 4.75 0.020
 SpO2, % 98(96–100) 99(98–100) 0.003
 HR, beats/min 92(79–101) 86(77–97) 0.089
 SPB, mmHg 124(112–131) 131(118–144) 0.011
Arterial blood gas
 PH 7.45(7.43–7.47) 7.45(7.45–7.48) 0.914
 PaCO2, mmHg 41.65(35.52–52.25) 38(34–44) 0.012
 PaO2, mmHg 85.25(77.3–101.5) 99(81–129) 0.008
 PaO2/FiO2, mmHg 259(212.46–314.25) 302(234–383) 0.003
Laboratory findings
 Leukocyte count, × 10.9/L 10.15(8.13–14.45) 8.9(6.7–12) 0.023
 Platelet count, × 10.9/L 154(112–234) 184(135–253) 0.031
 MPV, fl 11.6(10.48–12.88) 10.2(9.5–10.9) 0.000
 PDW, % 12(10.98–14.9) 12.1(10.5–13.6) 0.138
 Platelet large cell ratio, % 29.8(24.68–38.18) 28.2(21.6–33.5) 0.056
 CRP, mg/L 71(33–99) 44(16–86) 0.004
  1. Continuous variables were presented as median and interquartile range (IQR) or (mean ± standard deviation, SD). Difference of RR was compared by Student’s t test. Difference of other variables were compared by Mann–Whitney U-test
  2. Abbreviation: RR Respiratory Rate, HR Heart Rate, SBP Systolic Blood Pressure, SPO2 Peripheral Oxygen saturation, PaCO2 arterial Carbon dioxide tension, PaO2, arterial Oxygen tension, FiO2 Fraction of inspired Oxygen, MPV Mean Platelet Volume, PDW Platelet Distribution Width, CRP C-reactive Protein