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Table 3 Trends in characteristics and mortality for ICU admissions following in-hospital cardiac arrest

From: Increasing survival after admission to UK critical care units following cardiopulmonary resuscitation

  2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 p value for trend
Number of admissions after cardiac arrest, n (%) 2446 (3.1) 2424 (3.0) 2364 (2.9) 2418 (2.7) 2453 (2.5) 2704 (2.5) 3178 (2.4) 3366 (2.2) 3,843 (2.4) 4083 (2.5) 4517 (2.4) <0.001
Age, mean (SD) 64 (16.3) 63 (16.7) 65 (15.6) 64 (16.3) 64 (16.5) 64 (16.2) 64 (15.8) 64 (15.6) 65 (15.3) 65 (15.2) 65 (15.3) <0.001
Gender, males n (%) 1404 (57.4) 1400 (57.8) 1413 (59.8) 1439 (59.5) 1496 (61.0) 1623 (60.0) 1893 (59.6) 2059 (61.2) 2399 (62.4) 2554 (62.6) 2916 (64.6) <0.001
ICNARC Physiology Score, mean (SD) 29 (11.2) 29 (10.9) 29 (11.1) 29 (10.9) 29 (10.6) 29 (10.5) 29 (10.4) 29 (10.2) 29 (10.1) 29 (10.4) 28 (10.5) 0.121
Critical care unit length of stay, mean (SD) 5 (9.0) 6 (10.1) 5 (8.5) 5 (9.5) 6 (10.1) 6 (9.9) 6 (10.4) 7 (12.2) 6 (9.4) 6 (9.4) 6 (10.5) <0.001*
Critical care unit length of stay, median (IQR) 2.0 (0.6 5.8) 2.2 (0.7 6.3) 2.0 (0.6 5.9) 2.2 (0.8 6.0) 2.5 (0.8 7.1) 2.5 (0.9 6.9) 2.7 (0.9 6.7) 2.9 (1.0 7.1) 3.2 (1.1 7.4) 3.1 (1.0 7.3) 3.2 (1.1 7.4) <0.001*
Hospital length of stay, mean (SD) 22 (35.8) 24 (39.7) 21 (32.3) 23 (34.2) 22 (33.0) 22 (37.5) 23 (43.9) 23 (37.4) 22 (33.1) 22 (35.9) 21 (33.4) 0.1128 *
Hospital length of stay, median (IQR) 10.0 (3.0 27.0) 11.0 (3.0 28.0) 10.0 (3.0 26.0) 11.0 (3.0 26.0) 11.0 (4.0 28.0) 11.0 (3.0 26.0) 10.0 (3.0 26.0) 11.0 (4.0 27.0) 11.0 (4.0 27.0) 10.0 (4.0 26.0) 11.0 (4.0 25.0) 0.1128 *
lowest temperature of ≤ 34 °C 24 h n (%) 200 (8.6) 237 (10.2) 293 (12.9) 352 (15.0) 464 (19.3) 575 (21.5) 817 (26.2) 997 (30.0) 1305 (34.5) 1,420 (35.3) 1014 (22.8) <0.001
Treatment withdrawn n (%) 672 (27.5) 638 (26.3) 602 (25.5) 628 (26.0) 682 (27.8) 786 (29.1) 927 (29.2) 923 (27.4) 1149 (29.9) 1,198 (29.4) 1336 (29.6) <0.001
Time to treatment withdrawn (days) mean (sd) 4 (6.6) 4 (5.2) 4 (5.6) 4 (5.4) 5 (6.5) 5 (7.2) 5 (8.8) 5 (7.3) 5 (6.5) 5 (6.9) 5 (6.1) <0.001*
Time to treatment withdrawn (days) median (IQR) 2.4 (1.5 4.3) 2.4 (1.5 4.6) 2.4 (1.6 4.8) 2.5 (1.6 4.6) 2.6 (1.5 5.4) 2.7 (1.8 5.1) 2.9 (1.8 5.3) 3.2 (1.8 5.5) 3.3 (1.9 5.8) 3.2 (1.9 6.4) 3.4 (2.0 6.3) <0.001*
Solid organ donor n (%)** 25 (1.5) 17 (1.1) 17 (1.1) 24 (1.6) 30 (1.9) 45 (2.6) 38 (1.9) 50 (2.5) 73 (3.2) 85 (3.5)] 104 (3.9) <0.001
ICU mortality, n (%) 1406 (57.5) 1308 (54.0) 1302 (55.1) 1234 (51.0) 1281 (52.2) 1434 (53.1) 1662 (52.3) 1631 (48.5) 1909 (49.7) 2023 (49.6) 2235 (49.5) <0.001
Hospital mortality, n (%) 1683 (70.4) 1592 (66.7) 1593 (68.8) 1526 (64.2) 1555 (64.6) 1719 (64.5) 1988 (63.4) 1965 (59.2) 2280 (60.0) 2400 (59.5) 2687 (60.3) <0.001
Survivors discharged home, n (%)*** 521 (68.3) 583 (70.1) 530 (68.7) 622 (69.7) 624 (69.5) 681 (69.1) 839 (70.5) 1012 (72.2) 1136 (72.7) 1209 (71.8) 1292 (70.6) 0.559
  1. ICU intensive care unit, ICNARC Intensive Care National Audit & Research Centre, IQR interquartile range, SD standard deviation
  2. *Jonckheere-Terpstra test; ** percentage of hospital deaths; ***percentage of hospital survivors