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Table 3 Comparison between survivors and non-survivors among patients who underwent veno-arterial extracorporeal membrane oxygenation (VA ECMO).

From: Factors associated with outcomes of patients on extracorporeal membrane oxygenation support: a 5-year cohort study

Variables Survivors
(n = 66)
Non-survivors
(n = 39)
OR, CI 95% P
Age (years) 48 (42-58) 55 (44-62.5) 1.03 (1.00-1.06) 0.072
Male 52 (79%) 30 (77%) 0.90 (0.35-2.32) 0.823
APACHE II score (n = 102) 20 (15-25) 23.5 (17.8-28) 1.04 (0.99-1.10) 0.082
Comorbidities     
   Chronic cardiac failure 39 (59%) 21 (54%) 0.81 (0.36-1.79) 0.6
   Chronic respiratory failure 6 (9%) 3 (8%) 0.83 (0.20-3.54) 0.805
   Immunosuppression 33 (50%) 19 (49%) 0.95 (0.43-2.10) 0.899
ECMO initiated in another hospital 11 (17%) 8 (21%) 1.29 (0.47-3.55) 0.621
Events before ECMO     
Pre-ECMO ICU days 0 (0-1) 0 (0-2.5) 1.07 (0.97-1.18) 0.165
Pre-MV ICU days 0 (0.0.75) 0 (0-1) 1.13 (0.97-1.31) 0.111
Cardiac arrest before ECMO 12 (18%) 12 (31%) 2.00 (0.79-5.04) 0.141
Subtype of VA ECMO    2.40 (1.03-5.60) 0.044
   VA central (n = 43) 32/43(74%) 11/43 (25.5%)   
   VA peripheral (n = 62) 34/62 (55%) 28/62 (45%)   
Post-operative ECMO 36 (56%) 18 (46%) 0.71 (0.32-1.58) 0.406
Severity at ECMO initiation     
SOFA score before ECMO (n = 90) 11 (10-13) 12 (11-14) 1.12 (0.97-1.29) 0.133
PaO2/FiO2 ratio before ECMO (n = 79) 297 (111-355) 279 (140-380) 1.00 (1.00-1.00) 0.955
Plasma lactate day 0 (n = 82) (mmol/l) 5.9 (3-8.4) 8.8 (3.6-13.1) 1.13 (1.02-1.25) 0.014
Other organ support     
   RRT 34 (51%) 27 (69%) 2.12 (0.92-4.88) 0.078
   Inotropes/vasopressors 60 (91%) 37 (95%) 1.85 (0.35-9.65) 0.465
Days on ECMO 7 (6-10) 8 (3.5-13) 1.05 (0.98-1.13) 0.197
ECMO complications     
Neurologic complications 0 (0%) 1 (2.6%) - -
Bloodstream infections 7 (11%) 7 (17.9%) 2.18 (0.72-6.56) 0.290
Bleeding plus surgery 20 (30%) 14 (36%) 1.29 (0.5- 2.98) 0.554
Number of RBC units     
   Total 12 (7-20) 15 (7-34) 1.04 (1.01-1.07) 0.008
   Per day on ECMO at the Alfred 2 (0.9-3.1) 2.3 (1.5-4) 1.11 (0.97-1.26) 0.115
Platelets (bag, 350 ml) 3 (1-6.25) 5 (0-12) 1.08 (1.01-1.15) 0.021
FFP (bag, 300 ml) 3.5 (0-8) 9 (2-15.5) 1.11 (1.04-1.18) 0.001
Cryoprecipitate (bag, 150 ml) 0 (0-2) 1 (0-3) 1.34 (1.05-1.71) 0.018
Vascular complications 4 (6%) 4 (10%) 1.77 (0.42-7.53) 0.438
  1. Data presented as n (%) categorical variables and median (interquartile range) for non-parametric variables. APACHE II, acute physiology and chronic health evaluation; MV, mechanical ventilation; PaO2/FiO2, arterial partial pressure of oxygen to inspired oxygen fraction ratio; RRT, renal replacement therapy; RBC, red blood cells; SOFA, sequential organ failure assessment; ICU, intensive care unit; FFP, fresh frozen plasma.