In the March 2016 issue, the article beginning on page 570 included errors in the last paragraph of the Results section. The published paragraph and the corrected paragraph are included below, with the corrections in red.
Last paragraph of the Results section (published version):
In the validation cohort, POSPOM score equal to 30 (i.e., predicted in-hospital mortality = 5.65%) was associated with an observed in-hospital mortality of 6.74% (95% CI, 6.40 to 7.08%). The distribution of POSPOM and the associated observed in-hospital mortality in the validation cohort are shown in figure 3. POSPOM values less than or equal to 20 were associated with a probability of in-hospital mortality less than or equal to 0.32% (i.e., less than the in-hospital mortality observed in the full population—the average risk); a POSPOM value of 25 equates to a probability of in-hospital mortality of 1.37% (i.e., about three times the average risk), and POSPOM values of 30 and 40 equate to probabilities of in-hospital mortality of, respectively, 5.65 and 20.51% (i.e., 10 and 40 times the average risk).
Corrected version:
In the validation cohort, POSPOM score equal to 30 (i.e., predicted in-hospital mortality = 7.40%) was associated with an observed in-hospital mortality of 6.74% (95% CI, 6.40 to 7.08%). The distribution of POSPOM and the associated observed in-hospital mortality in the validation cohort are shown in figure 3. POSPOM values less than or equal to 20 were associated with a probability of in-hospital mortality less than or equal to 0.04% (i.e., less than the in-hospital mortality observed in the full population—the average risk); a POSPOM value of 25 equates to a probability of in-hospital mortality of 1.73% (i.e., about three times the average risk), and POSPOM values between 30 and 40 equate to a probability of in-hospital mortality of 11.77% (i.e., 20 times the average risk).
