Research Article

Utility of Plasma GDF-15 for Diagnosis and Prognosis Assessment of ICU-Acquired Weakness in Mechanically Ventilated Patients: Prospective Observational Study

Table 1

Comparison of baseline levels and clinical features between the two groups.

ICU-AW group (n = 50)Non-ICU-AW group (n = 45)t/χ2 value

Baseline characteristics
 Age (years)58.75 ± 13.5860.32 ± 15.630.5240.602
 Male/total32/5029/450.0450.964
 Weight (kg)61.43 ± 8.9359.57 ± 11.680.8770.383
 BMI (kg/m2)23.79 ± 3.4124.47 ± 4.540.8310.408
 SOFA8.23 ± 3.187.21 ± 3.671.4510.150
 APACHE II16.35 ± 7.2115.79 ± 8.120.3560.723
 Smoking history18/5015/450.0010.983
 Comorbidities22/5018/450.0030.956
Cause of MV
 Pneumonia12/5013/450.5400.589
 AECOPD19/5017/450.0220.982
 Pulmonary contusion7/506/450.0940.925
ARDS6/504/450.4930.622
 Others6/505/450.1350.893
Length of MV (h)196.68 ± 51.36167.52 ± 78.722.1590.033
ICU length of stay (days)11.25 ± 3.379.76 ± 2.312.4860.015
Hospital length of stay (days)20.54 ± 6.3717.76 ± 4.932.3590.020

Data are mean ± standard deviation or number/total. Comorbidities include hypertension, diabetes, chronic kidney disease, cirrhosis, and history of trauma surgery. BMI: body mass index, SOFA: sequential organ failure assessment, APACHEII :  Acute Physiology and Chronic Health Evaluation II, MV: mechanical ventilation, AECOPD: acute exacerbation of chronic obstructive pulmonary disease, ARDS: acute respiratory distress syndrome.