Body temperature on arrival to hospital, °C | Overall | Missing | ≦35.9 | 36.0–36.9 | 37.0≦ | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|
(n = 4468) | (n = 1150) | (n = 1932) | (n = 1100) | (n = 286) | P value* | ||||||
Age, years, mean (SD) | 70.28 | (15.0) | 71.81 | (14.6) | 70.1 | (14.8) | 69.1 | (15.2) | 69.8 | (16.1) | 0.001 |
Men, n (%) | 2996 | (67.1) | 741 | (64.4) | 1264 | (65.4) | 781 | (71.0) | 210 | (73.4) | 0.001 |
First documented rhythm at EMS arrival, n (%) | < 0.001 | ||||||||||
 VF/pulseless VT | 1072 | (24.0) | 269 | (23.4) | 482 | (24.9) | 284 | (25.8) | 37 | (12.9) | |
 PEA/Asystole | 3075 | (68.8) | 816 | (71.0) | 1304 | (67.5) | 733 | (66.6) | 222 | (77.6) | |
 Others | 321 | (7.2) | 65 | (5.7) | 146 | (7.6) | 83 | (7.5) | 27 | (9.4) | |
 Bystander-initiated CPR, n (%) | 1760 | (39.4) | 424 | (36.9) | 794 | (41.1) | 453 | (41.2) | 89 | (31.1) | 0.004 |
 Bystander-initiated AED, n (%) | 153 | (3.4) | 27 | (2.3) | 71 | (3.7) | 47 | (4.3) | 8 | (2.8) | 0.462 |
Origin | |||||||||||
 Cardiac, n (%) | 3843 | (86.0) | 1015 | (88.3) | 1649 | (85.4) | 938 | (85.3) | 241 | (84.3) | 0.889 |
Non-Cardiac | 0.006 | ||||||||||
 Cerebrovascular disease, n (%) | 187 | (4.2) | 26 | (2.3) | 80 | (5.9) | 69 | (9.9) | 12 | (6.2) | |
 Respiratory disease, n (%) | 283 | (6.3) | 51 | (4.4) | 141 | (10.4) | 61 | (8.8) | 30 | (15.4) | |
 Malignancy, n (%) | 148 | (3.3) | 54 | (4.7) | 49 | (3.6) | 30 | (4.3) | 15 | (7.7) | |
 Time from call to hospital, min (mean (SD)) | 35.8 | (16. 5) | 36.2 | (16. 5) | 35.1 | (15.3) | 36.8 | (18.5) | 34.6 | (15.8) | 0.018 |
Season, n (%) | < 0.001 | ||||||||||
 Spring | 1070 | (23.9) | 250 | (21.7) | 494 | (25.6) | 265 | (24.1) | 61 | (21.3) | |
 Summer | 916 | (20.5) | 233 | (20.3) | 315 | (16.3) | 292 | (26.5) | 76 | (26.6) | |
 Autumn | 1117 | (25.0) | 299 | (26.0) | 469 | (24.3) | 285 | (25.9) | 64 | (22.4) | |
 Winter | 1365 | (30.6) | 368 | (32.0) | 654 | (33.9) | 258 | (23.5) | 85 | (29.7) | |
BT measeurement site n, (%) | < 0.001 | ||||||||||
 Ear | 674 | (20.6) | N/A | 564 | (29.6) | 78 | (7.2) | 32 | (11.3) | ||
 Rectal | 71 | (2.2) | N/A | 28 | (1.5) | 22 | (2.0) | 21 | (7.4) | ||
 Urinary bladder | 186 | (5.7) | N/A | 117 | (6.1) | 53 | (4.9) | 16 | (5.7) | ||
 Axillary | 2035 | (62.3) | N/A | 1083 | (56.8) | 747 | (69.2) | 205 | (72.7) | ||
 Others | 302 | (9.2) | N/A | 115 | (6.0) | 179 | (16.6) | 8 | (2.8) |