|
Patient characteristics
|
|
Male sex
|
1652 (69.6)
|
791 (47.9)
|
861 (52.1)
|
0.50
|
|
Age in years
|
63.3 ± 13.8
|
62.7 ± 12.5
|
64.0 ± 14.9
|
0.02
|
|
Hypertension
|
839/2041 (41.1)
|
411/966 (42.5)
|
428/1075 (39.8)
|
0.21
|
|
Diabetes mellitus
|
379/2219 (17.1)
|
180/1109 (16.2)
|
199/1110 (17.9)
|
0.29
|
|
Hypercholesterolemia
|
288/1211 (23.8)
|
128/530 (24.2)
|
160/681 (23.5)
|
0.88
|
|
Previous cardiac arrest
|
21/1003 (2.1)
|
9/577 (1.6)
|
12/426 (2.8)
|
0.17
|
|
Previous myocardial infarction
|
495/2189 (22.6)
|
231/1100 (21.0)
|
264/1089 (24.2)
|
0.07
|
|
Previous CVA or TIA
|
43/690 (6.2)
|
24/357 (6.7)
|
19/333 (5.7)
|
0.64
|
|
Chronic kidney disease
|
69/1141 (6.0)
|
20/586 (3.4)
|
49/555 (8.8)
|
< 0.001
|
|
Previous renal replacement therapy
|
15/1009 (1.5)
|
7/579 (1.2)
|
8/430 (1.9)
|
0.40
|
|
Pre-hospital characteristics
|
|
Arrest witnessed
|
981/1227 (80.0)
|
495/608 (81.4)
|
486/619 (78.5)
|
0.20
|
|
First rhythm
|
< 0.001
|
|
VF/VT
|
1009/1193 (84.6)
|
572/614 (93.2)
|
437/579 (75.5)
| |
|
PEA
|
57/1193 (4.8)
|
12/614 (2.0)
|
45/579 (7.8)
| |
|
Asystole
|
127/1193 (10.6)
|
30/614 (4.9)
|
97/579 (16.8)
| |
|
Time from arrest to BLS in minutes
|
3 [1–5]
|
3 [1–5]
|
3 [1–5]
|
0.40
|
|
Time from arrest to ROSC in minutes
|
15 [10–23]
|
15 [10–23]
|
15 [10–23]
|
0.69
|
|
Characteristics on hospital arrival
|
|
Glasgow Coma Scale < 8
|
1374/1533 (89.6)
|
639/735 (86.9)
|
735/798 (92.1)
|
0.001
|
|
Signs of STEMI on ECG
|
543/1965 (27.6)
|
410/969 (42.3)
|
133/996 (13.4)
|
< 0.001
|
|
CT scan performed
|
320/751 (57.4)
|
205/378 (54.2)
|
115/373 (30.8)
|
< 0.001
|
|
Laboratory values upon admission
|
|
pH
|
7.2 [7.1–7.3]
|
7.2 [7.1–7.3]
|
7.2 [7.1–7.3]
|
0.05
|
|
Lactate, mmol/L
|
5.9 [3.5–9.1]
|
5.5 [3.5–8.8]
|
6.2 [3.7–9.4]
|
0.01
|
|
Hemoglobin, mmol/L
|
8.4 ± 1.3
|
8.5 ± 1.2
|
8.3 ± 1.3
|
0.001
|
|
Hematocrit
|
0.40 ± 0.06
|
0.41 ± 0.1
|
0.39 ± 0.1
|
0.001
|
|
Leukocytes, ·109/L
|
12.5 [9.8–16.7]
|
12.6 [10.0–17.0]
|
12.2 [9.4–16.1]
|
0.07
|
|
CRP, mg/L
|
5 [3–17]
|
4 [3–16]
|
5 [3–19]
|
0.15
|
|
Creatinine, µmol/L
|
98 [82–117]
|
96 [81–114]
|
100 [82–120]
|
0.001
|
|
Creatinine > 130 µmol/L
|
366/2342 (15.6)
|
148/1134 (12.9)
|
218/1208 (17.8)
|
0.001
|
