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Table 1 Baseline characteristics according to the cannulation (before and after propensity score matching)

From: Clinical outcomes according to cannula configurations in patients with acute respiratory distress syndrome under veno-venous extracorporeal membrane oxygenation: a Korean multicenter study

 Unmatched cohortMatched cohort
Total
(n = 335)
Jugular
(n = 157)
Femoral
(n = 178)
PTotal
(n = 180)
Jugular
(n = 90)
Femoral (n = 90)P
Age55.6 ± 14.755.5 ± 14.355.7 ± 150.88556.7 ± 1456.4 ± 14.257 ± 13.90.759
Sex222 (66.3)111 (70.7)111 (62.4)0.135113 (62.8)54 (60)59 (65.6)0.537
BMI22.9 ± 4.123.1 ± 4.322.6 ± 3.90.28122.6 ± 4.123 ± 4.422.2 ± 3.70.166
APACHE22.1 ± 9.320 ± 8.824 ± 9.4< 0.00122.3 ± 9.421.8 ± 9.422.8 ± 9.40.507
SOFA8.5 ± 4.38.6 ± 4.28.5 ± 4.50.8128.6 ± 4.58.6 ± 4.48.7 ± 4.60.894
RESP score0.2 ± 3.30.9 ± 3.20.6 ± 3.2< 0.0010 ± 3.10 ± 30 ± 3.10.846
Preserve score5.4 ± 1.85.3 ± 1.95.5 ± 1.80.5195.4 ± 1.85.3 ± 1.95.4 ± 1.70.726
Etiology of respiratory failure 0.004   0.192
 Viral pneumonia49 (14.6)23 (14.6)26 (14.6) 31 (17.2)14 (15.6)17 (18.9) 
 Bacterial pneumonia133 (39.7)79 (50.3)54 (30.3) 73 (40.6)42 (46.7)31 (34.4) 
 COPD and asthma4 (1.2)3 (1.9)1 (0.6) 1 (0.6)0 (0.0)1 (1.1) 
 Trauma and burn14 (4.2)8 (5.1)6 (3.4) 7 (3.9)2 (2.2)5 (5.6) 
 Asphyxia4 (1.2)2 (1.3)2 (1.1) 2 (1.1)2 (2.2)0 (0.0) 
 Acute exacerbation of ILD65 (19.4)22 (14.0)43 (24.2) 36 (20.0)18 (20.0)18 (20.0) 
 Chronic respiratory failure16 (4.8)5 (3.2)11 (6.2) 6 (3.3)2 (2.2)4 (4.4) 
 Airway obstruction25 (7.5)6 (3.8)19 (10.7) 15 (8.3)4 (4.4)11 (12.2) 
 Other respiratory failure25 (7.5)9 (5.7)16 (9.0) 9 (5.0)6 (6.7)3 (3.3) 
Pre-ECMO rescue therapy1.000   0.765
 NMB179 (54.1)83 (53.9)96 (54.2)95 (52.8)46 (51.1)49 (54.4) 
 NO103 (31.1)25 (16.2)78 (44.1)51 (28.3)25 (27.8)26 (28.9) 
 Prone80 (25.1)55 (38.7)25 (14.1)45 (25.6)30 (34.9)15 (16.7) 
 Steroid63 (19.6)31 (21.7)32 (18)34 (19.3)21 (24.4)13 (14.4) 
 CRRT53 (15.8)19 (12.1)34 (19.1)27 (15)14 (15.6)13 (14.4) 
 MV318 (94.9)155 (98.7)163 (91.6)177 (98.3)88 (97.8)89 (98.9) 
Center   <0.001   <0.001
 A44 (13.1)5 (3.2)39 (21.9) 28 (15.6)5 (5.6)23 (25.6) 
 B109 (32.5)86 (54.8)23 (12.9) 68 (37.8)50 (55.6)18 (20) 
 C44 (13.1)3 (1.9)41 (23) 16 (8.9)3 (3.3)13 (14.4) 
 D77 (23)18 (11.5)59 (33.1) 33 (18.3)10 (11.1)23 (25.6) 
 E45 (13.4)44 (28)1 (0.6) 22 (12.2)22 (24.4)0 (0) 
 F16 (4.8)1 (0.6)15 (8.4) 13 (7.2)0 (0)13 (14.4) 
Year   0.216   0.633
 276 (22.7)34 (21.7)42 (23.6) 45 (25)23 (25.6)22 (24.4) 
 377 (23)34 (21.7)43 (24.2) 35 (19.4)20 (22.2)15 (16.7) 
 487 (26)36 (22.9)51 (28.7) 51 (28.3)22 (24.4)29 (32.2) 
 595 (28.4)53 (33.8)42 (23.6) 49 (27.2)25 (27.8)24 (26.7) 
  1. Values are expressed as mean ± standard deviation, or n (%); significant P values are in italic
  2. APACHE Acute Physiology and Chronic Health Evaluation, SOFA Sequential Organ Failure Assessment, PRESERVE Predicting Death for Severe Acute Respiratory Distress Syndrome on Veno-venous ECMO, COPD chronic obstructive pulmonary disease, ILD interstitial lung disease, ARDS acute respiratory distress syndrome, ECMO extracorporeal membrane oxygenation, NMB neuromuscular blockade, NO nitric oxide, CRRT continuous renal replacement therapy, MV mechanical ventilation, BMI body mass index