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Table 3 Estimated gain in survival attributable to intensive care, and observed proportion of patients admitted

From: ICU physicians’ and internists’ survival predictions for patients evaluated for admission to the intensive care unit

Difference in survival categories* between ICU and ward Intensive care physician Internist
N (%) Proportion admitted (%) N (%) Proportion admitted (%)
Loss of 1 5 (2.5) 80.0  
Even 58 (28.9) 32.8 24 (11.9) 37.5
Gain of 1 62 (30.8) 79.0 75 (37.3) 61.3
Gain of 2 50 (24.9) 88.0 65 (32.3) 86.2
Gain of 3 22 (10.9) 90.9 29 (14.4) 82.8
Gain of 4 4 (2.0) 100 6 (3.0) 83.3
Test for linear trend   <0.001   <0.001
  1. *Survival was categorized as < 10%, 10–40%, 41–60%, 61–90%, > 90%