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Table 1 Demographic variables

From: Effect of the Cardio First Angel™ device on CPR indices: a randomized controlled clinical trial

Variable Total (N = 80) Intervention (N = 40) Control (N = 40)  
  Mean ± SD n (%) Mean ± SD n (%) Mean ± SD n (%) p Value
Age, years 61.10 ± 13.31   59.62 ± 13.27   62.57 ± 13.35   0.32a
ICU length of stay, days 22.45 ± 15.41   18.22 ± 15.42   26.68 ± 14.37   0.28a
Nurse ICU experience, years 19.57 ± 5.51   19.3 ± 5.45   19.85 ± 5.63   0.65a
Sex, female   49 (61.3)   22 (55.0)   27 (65.5) 0.6b
Intubated before CPR event   46 (57.5)   21 (52.5)   25 (62.5) 0.49b
Multiorgan dysfunction, yes   44 (55.0)   22 (55.0)   22 (55.0) 1.00b
Osteoporosis, no   69 (86.3)   36 (90.0)   33 (82.0) 0.52c
  1. CPR cardiopulmonary resuscitation, ICU intensive care unit
  2. a t test
  3. bχ2 test with Yates correction
  4. cFisher’s exact test