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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].