Table 4.
Forward stepwise logistic regression model for the prediction of COVID-19 progression to severe disease.
| Variables in the Equation | β | p-Value | Odds Ratio | |
|---|---|---|---|---|
| Step 1 | Diabetes | 3.64 | 0.001 | 38.0 |
| Step 2 | Diabetes | 3.37 | 0.002 | 29.2 |
| Lung involvement † | 2.29 | 0.003 | 9.9 | |
| Step 3 | Diabetes | 3.74 | 0.001 | 42.0 |
| Lung involvement | 2.39 | 0.006 | 10.9 | |
| CD8+ NKG2A T cell MFI > 2054 | 2.78 | 0.020 | 16.0 | |
| Step 4 (Final model) * |
Diabetes | 3.71 | 0.002 | 40.9 |
| Lung involvement | 2.59 | 0.008 | 13.3 | |
| CD8+ NKG2A T cell MFI > 2054 | 2.65 | 0.037 | 14.2 | |
| Obesity | 2.63 | 0.040 | 13.8 | |
* Constant = −9.746; Hosmer–Lemeshow test, p = 0.948. † Significant lung involvement (oxygen saturation ≤93% or >50% lung involvement on computed tomography examination) on admission. MFI, mean fluorescent intensity; NKG2A, natural killer group 2 member A.