Comparison of Predicted Mortality Between Original Derivation Cohort and Quebec Validation Cohort
| Risk Groupa | Original Derivation Cohortb | Quebec Validation Cohortc | P Valued | ||||
|---|---|---|---|---|---|---|---|
| Patients, % | Mortality Rate, % (95% CI) | SSLR | Patients, % | Mortality Rate, % (95% CI) | SSLR | ||
| COVID-NoLab | |||||||
| Low | 22 | 1.3 (0.4-3.4) | 0.10 | 16 | 1.1 (0.02-5.7) | 0.10 | .83 |
| Moderate | 67 | 11.3 (9.4-13.4) | 0.93 | 64 | 9.6 (6.8-13.0) | 0.91 | .36 |
| High | 11 | 30.5 (24.4-37.0) | 3.20 | 20 | 21.2 (14.2-30.0) | 2.00 | .07 |
| COVID-SimpleLab | |||||||
| Low | 31 | 0.4 (0.01-2.4) | 0.03 | 26 | 0.0 (0.0-2.8) | 0.00 | .46 |
| Moderate | 31 | 8.3 (5.0-12.6) | 0.60 | 34 | 9.8 (5.7-15.5) | 0.87 | .59 |
| High | 38 | 30.6 (25.3-36.4) | 2.20 | 40 | 20.0 (14.6-26.4) | 1.80 | .01 |
SSLR = stratum-specific likelihood ratio.
↵a See Table 1 for cutoffs for the risk groups.
↵b Cohort had 1,527 patients for the COVID-NoLab risk score and 740 patients for the COVID-SimpleLab risk score.
↵c Cohort had 588 patients for the COVID-NoLab risk score and 479 patients for the COVID-SimpleLab risk score.
↵d From the Pearson χ2 test for the comparison of mortality rates between cohorts.