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Table 1 Characteristics of 1639 patients suffering an in-hospital cardiac arrest during 2007–2017 in Karolinska University Hospital

From: Survival of in-hospital cardiac arrest in men and women in a large Swedish cohort

  Women Number (%) 650 (100) Men Number (%) 989 (100) P-value*
Age category < 0.01
 18–50 50 (8) 101 (10)  
 51–60 84 (13) 117 (12)  
 61–70 131 (20) 271 (27)  
 71–80 192 (30) 288 (29)  
 ≥ 81 193 (30) 212 (21)  
Charlson co-morbidity index 0.64
 None 0 points 222 (34) 346 (35)  
 Low 1–2 points 226 (35) 331 (33)  
 Moderate 3–5 points 152 (23) 220 (22)  
 High 6–8 points 50 (8) 92 (9)  
National Early Warning Score 2015–2017** 240 (100) 207 (100) 0.10
 Low 0-4points 97 (40) 66 (32)  
 Medium 5–6 points or a single 3 point 46 (19) 50 (24)  
 High, at least 7 points 44 (18) 31 (15)  
 Missing 53 (22) 60 (29)  
Place of cardiac arrest 0.09
 Patient ward 261 (40) 401 (41)  
 High Dependency Unit 163 (25) 234 (24)  
 Intensive care unit 57 (9) 105 (11)  
 Operating/procedure rooms 11 (2) 19 (2)  
 Angio cath lab 38 (6) 86 (9)  
 Emergency Department 66 (10) 89 (9)  
 Others incl. x-ray department 54 (8) 55 (6)  
ECG- surveillance 0.01
 Yes 299 (46) 509 (51)  
 No 343 (53) 453 (46)  
 Missing 8 (1) 27 (3)  
Witnessed cardiac arrest 0.20
 Yes 522 (80) 766 (72)  
 No 119 (18) 206 (21)  
 Missing 9 (1) 17 (2)  
First documented heart rhythm < 0.01
 VT/VF 105 (16) 241 (24)  
 PEA/asystole 422 (65) 623 (63)  
 Missing 123 (19) 125 (13)  
CRP duration (minutes)
 All, Median (IQR) 8 (2–18) 6 (2–16) 0.14
 ROSC 5 (2–11) 5 (2–12)  
 No ROSC 22 (14–35) 20 (12–30)  
ROS 0.09
 Yes 350 (54) 490 (50)  
Decision to withdraw/withhold life-sustainable treatments among those having ROSC 2015–2017
 Yes 25 (17) 22 (17)  
Hypothermia/Target Temperature Management
 Yes 27 (8***) 66 (13***) 0.11
  1. *P-values were assessed with Chi2-test regarding differences between women and men
  2. ** NEWS was only available during the years 2015–2017
  3. € Information only available for IHCA during the years 2015–2017, i.e. out of 240 women and 207 men having an IHCA, 150 (63%) and 124 (60%) had ROSC, respectively. Percentage 25/150 and 22/124 respectively
  4. *** Percentage = number with treatment/number with ROSC