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. 2020 Feb 28;6(2):e03491. doi: 10.1016/j.heliyon.2020.e03491

Table 2.

Primary outcomes and associated clinical variables of interest. Items in bold have P value <0.05

Survival of Code (n = 105) Died at Code (n = 71) P-Value Survival to Discharge (n = 38) Died before Discharge (n = 139) P-value
Age (mean ± SD) 60.2 ± 14.5 61.2 ± 15.4 0.65 60.3 ± 15.8 60.7 ± 14.6 0.87
Female Sex 31 (29.5%) 22 (31.0%) 0.87 8 (21.1%) 45 (32.6%) 0.23
Coronary Artery Disease (CAD) 30 (28.6%) 22 (31.0%) 0.74 16 (42.1%) 36 (26.1%) 0.07
Cardiac implantable electronic device 6 (8.5%) 12 (11.4%) 0.62 5 (13.2%) 13 (9.4%) 0.55
Obesity 36 (34.3%) 14 (20.0%) 0.04 13 (34.2%) 37 (27.7%) 0.42
Monitored Unit (n = 146) 74 (88.1%) 56 (90.3%) 0.79 26 (92.9%) 104 (88.1%) 0.74
Witnessed 95 (90.5%) 61 (85.9%) 0.47 38 (100%) 118 (85.5%) 0.008
Heart Failure 26 (24.8%) 21 (30.0%) 0.49 11 (28.9%) 36 (26.1%) 0.84
Beta Blocker 17 (23.9%) 29 (27.6%) 0.61 37 (26.8%) 9 (23.7%) 0.84
Calcium Channel Blocker 5 (7.0%) 5 (4.8%) 0.53 9 (6.5%) 1 (2.6%) 0.69
Antiarrhythmic Drug 11 (15.5%) 18 (17.1%) 0.84 24 (17.4%) 5 (13.2%) 0.63
Renal Disease 18 (17.1%) 14 (19.7%) 0.69 6 (15.8%) 26 (18.8%) 0.81
Lung Disease 38 (36.2%) 18 (25.4%) 0.14 13 (34.2%) 43 (31.2%) 0.70
Respiratory arrest
41 (39.0%)
13 (18.3%)
0.01
19 (50.0%)
35 (25.2%)
0.005
Causes


0.001


<0.0001
 Acidemia 5 (4.7%) 1 (1.4%) 0 (0%) 6 (4.3%)
 Cardiac tamponade 2 (1.9%) 5 (7.0%) 0 (0%) 7 (5.0%)
 Electrolyte abnormality 4 (3.6%) 2 (2.8%) 0 (0%) 6 (4.3%)
 Respiratory 41 (39.0%) 13 (18.3%) 19 (50.0%) 35 (25.2%)
 Myocardial infarction 6 (5.5%) 5 (7.0%) 3 (7.9%) 8 (5.7%)
 Pulmonary embolus 3 (2.7%) 6 (8.5%) 1 (2.6%) 8 (5.7%)
 Shock 19 (17.3) 25 (35.2%) 2 (5.2%) 42 (30.2%)
 Other 18 (16.4%) 3 (4.2%) 11 (28.9%) 10 (7.2%)
 Unknown 10 (9.5%) 5 (7.0%) 2 (5.2%) 13 (9.4%)
Brady-PEA 44 (41.9%) 22 (31.0%) 0.16 22 (57.9%) 44 (31.9%) 0.0045
Vasopressin 17 (16.2%) 22 (31.0%) 0.25 5 (13.2%) 34 (24.4%) 0.18
Epinephrine 93 (88.6%) 70 (98.5%) 0.003 29 (76.3%) 134 (96.4%) <0.001
Atropine 17 (16.2%) 16 (22.5%) 0.33 4 (10.5%) 29 (20.9%) 0.23
Sodium bicarbonate 65 (61.9%) 60 (84.5%) 0.001 16 (42.1%) 109 (78.4%) <0.0001
Intubated prior to code or within 15 min of onset 76 (72.3%) 55 (77.5%) 0.49 26 (68.4%) 105 (76.0%) 0.40