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Table 1 Characteristics of the population

From: Handgrip strength to predict extubation outcome: a prospective multicenter trial

Variables Population (n = 233)
Age (y) 66 [53–75]
Gender (M/F) 139/94
BMI (kg/m2) 28.9 ± 7.9
Dominant hand (R/L) 210/23
SAPS II 53 [40–67]
Baseline respiratory diseasea n (%) 74 (31.8)
 COPD 41 (17.6)
 Other 36 (15.4)
Baseline cardiac diseasea n (%) 88 (37.8)
 LVF 45 (19.3)
 Other 33 (14.2)
Reason for admission n (%)
 Shock 52 (22.3)
 De novo ARF 66 (28.3)
 Hypercapnic ARF 22 (9.4)
 Neurologic failure 41 (17.6)
 Post-operative 19 (8.2)
 Other 33 (14.2)
Time spent under MV at inclusion (d) 6 [3–10]
  1. Y years, M male, F female, R right, L left, SAPS Simplified Acute Physiology Score, COPD chronic obstructive pulmonary disease, LVF left ventricular failure, ARF acute respiratory failure, MV mechanical ventilation, d days
  2. aSome patients harbored more than one baseline comorbidity making the whole sample inferior to the sum of both subgroups