Table 6—

In-hospital mortality in the derivation and validation cohorts by prediction score tertile

DerivationValidation
Subjects n353334
Tertile 1 (0–1 points)1.7 (2)0.0 (0)
Tertile 2 (2–3 points)4.6 (5)4.8 (5)
Tertile 3 (>4 points)15.5 (19)12.3 (14)
c-statistic0.790.83
Sensitivity#,¶19/26 = 0.7314/19 = 0.74
Specificity#,+223/327 = 0.68215/315 = 0.68
  • Data are presented as % (n), unless otherwise stated. #: tertile 3 versus tertiles 1 plus 2; : sensitivity (true positive/true positive plus false negative); +: specificity (true negative/true negative plus false positive).