Odds ratios and for area under the receiver operator statistic curve for global frailty score following multivariable adjustment for age, gender, calendar year by population subgroup and outcome within validation dataset.
| Outcome | Population | AUC | OR | Lower CI | Upper CI | P value |
| In-hospital mortality | Elective | 0.649 | 1.173 | 1.171 | 1.174 | <0.001 |
| Non-elective | 0.655 | 1.108 | 1.107 | 1.109 | <0.001 | |
| 30 day non-elective readmission | Elective | 0.630 | 1.045 | 1.044 | 1.047 | <0.001 |
| Non-elective | 0.630 | 1.030 | 1.030 | 1.031 | <0.001 | |
| Upper quartile length of stay (for country) | Elective | 0.676 | 1.193 | 1.192 | 1.193 | <0.001 |
| Non-elective | 0.677 | 1.055 | 1.055 | 1.055 | <0.001 |
*Admission history included in multivariable model exploring 30 day non-elective readmission.
AUC, area under the receiver operator characteristic curves.