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Table 2 Comparison of the clinical outcomes between study groups

From: Determinants of gait independence after mechanical ventilation in the intensive care unit: a Japanese multicenter retrospective exploratory cohort study

 Total (n = 132)Gait independence (n = 84)Gait dependence (n = 48)p value
ICU and hospital outcome
 Time to first rehabilitation (day)2 [2–4]2 [2–4]3 [2–4]0.906
 Duration of mechanical ventilation (day)5 [3–7]5 [3–7]5 [4–8]0.211
 Time to first out-of-bed mobilization (day)6 [4–9]6 [4–10]6 [4–9]0.151
 Highest reach IMS at ICU entry4 [3–5]3 [3–5]3 [3–6]0.089
 Delirium, n (%)51 (38.6)23 (27.7)28 (58.3)< .0001
 MRC sum-score at ICU discharge45 [36–48]48 [36–54]36 [28–48]< .0001
 ICU-AW at ICU discharge, n (%)66 (50.0)36 (42.9)30 (62.5)< .0001
 ICU length of stay (day)8 [5–11]7 [5–11]8 [6–12]0.025
 Hospital length of stay (day)40 [22–59]41 [21–61]40 [22–57]0.909
 Discharge to home, n (%)81 (61.4)60 (71.4)21 (43.8)< .0001
Early mobilization levels, session (%)
 Level 3121 (70.5)76 (69.1)44 (73.3)0.560
 Level 441 (24.1)27 (24.5)14 (23.3)0.859
 Level 59 (5.4)7 (6.4)2 (3.4)0.495
 Total session for levels 3 to 517011060
Adverse event during ICU rehabilitation, n (%)
 Cardiopulmonary arrest0 (0)0 (0)0 (0)
 Fall to knees or ground0 (0)0 (0)0 (0)
 Inadvertent removal of medical devices0 (0)0 (0)0 (0)
 Desaturation4 (1.8)1 (0.9)3 (6.0)0.255
 Tachypnea or bradypnea1 (0.4)0 (0)1 (2.0)
 Tachycardia or bradycardia4 (1.8)3 (2.7)0 (0)
 Hypertension or hypotension10 (4.4)4 (3.6)3 (6.0)0.512
 New arrhythmia0 (0)0 (0)0 (0)
  1. Median [25th–75th percentile] or the number of patients (percentage). Independent-sample Mann-Whitney U test or χ2 test. ICU intensive care unit, IMS ICU-mobility scale, MRC Medical Research Council, ICU-AW ICU-acquired weakness, BI Barthel Index