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Table 4 Comparison of illness severity scores between cases and control patients on the day of admission and on the day of onset of thrombocytopenia in the nine discordant pairs

From: Thrombocytopenia in critically ill surgical patients: a case-control study evaluating attributable mortality and transfusion requirements

Score Cases (n = 9) Control patients (n = 9) P
APACHE II (median)    
   Day of admission 25.2 ± 4.2 (25) 24.0 ± 6.7 (26) NS
   Day of thrombocytopenia 30.7 ± 8.3 (47) 12.9 ± 5.2 (11)* 0.04
SAPS II (median)    
   Day of admission 46.6 ± 10.5 (47) 46.9 ± 16.9 (40) NS
   Day of thrombocytopenia 58 ± 18.2 (51) 32.1 ± 10.4 (31)* 0.04
ODIN model (median)    
   Day of admission 3.3 ± 1.4 (4) 3.0 ± 1.0 (3) NS
   Day of thrombocytopenia 3.8 ± 0.67 0.7 ± 1 (0)* 0.008
Expected mortality (%)    
   Day of admission 39.1 39.1
   Day of thrombocytopenia 64.0 12.8
  1. *P < 0.05 by Wilcoxon's signed-ranktest (score on day of admission versus score on day of thrombocytopenia incontrol group). Calculated from the equation proposed by LeGall et al. [18].