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Table 2 Cardiac arrest treatment frequency strata and patients baseline characteristics

From: Effect of intensive care after cardiac arrest on patient outcome: a database analysis

  Low-treatment-frequency ICUa Medium-treatment-frequency ICUa High-treatment frequency ICUa P value
Number of patients 1,986 (33.9) 2,013 (34.4) 1,858 (31.7)  
Age in years 72.0 (61.0 - 80.0) 70.0 (60.0 - 78.0) 69.0 (58.0 - 78.0) <0.001
Sex female 806 (40.7) 685 (34.1) 607 (32.7) <0.001
SAPS IIb score 63 (49;78) 62 (49;75) 65 (54;78) <0.001
Medical admission 1,845 (92.0) 1,995 (99.5) 1,825 (98.3) <0.001
Scheduled surgical 70 (3.5) 6 (0.3) 12 (0.7) <0.001
Unscheduled surgical 71 (3.6) 5 (0.3) 19 (1.0) <0.001
Chronic renal insufficiency 233 (11.7) 190 (9.4) 195 (10.5) 0.0614
Chronic respiratory insufficiency 225 (11.3) 117 (5.8) 168 (9.0) <0.001
Chronic cardiac failure NYHAc IV 517 (26.0) 436 (21.7) 521 (28.0) <0.001
Liver cirrhosis 68 (3.4) 49 (2.4) 53 (2.9) 0.1738
Insulin-dependent diabetes mellitus 147 (7.4) 134 (6.7) 156 (8.4) 0.1195
  1. Displayed as median with IQR (interquartile range from 25th to 75th quartile), frequencies are displayed in absolute numbers (n) and (%). aICU, Intensive Care Unit; bSAPS II, Simplified Acute Physiology Score II; cNYHA, New York Heart Association functional classification.