Table 1

Posterior probabilities and BFs favoring the 1:1:1 transfusion strategy

Time period (hour)P(1:1:1>1:1:2)BFLevel of evidence*
196%21.2Strong
399%142Decisive
694%14.9Strong
1292%11.4Strong
1896%26.4Strong
2494%15.5Strong
  • P(1:1:1>1:1:2); posterior probability of balanced transfusion being superior to red cell heavy strategy.

  • *Based on Jeffery’s Scale of Evidence: BFs between 1 and 3 represent anecdotal evidence, 3 and 10 represent substantial evidence, 10 and 30 represent strong evidence, 30 and 100 represent very strong evidence and >100 represent decisive evidence in favor of the alternative hypothesis.

  • BF, Bayes factor.