Multiple regression model excluding cases with missing BMI
| Analysis of maximum likelihood estimates | |||||
| Parameter | DF | Estimate | SE | Wald Χ2 | Pr>Χ2 |
| Intercept | 1 | 26.754428 | 385.484 | 0.3047 | 0.581 |
| Sex | 1 | 0.4730283 | 1.56643 | 2.7828 | 0.0953 |
| Age | 1 | 0.9660883 | 1.0577 | 0.3771 | 0.5391 |
| BMI | 1 | 0.9214562 | 1.11293 | 0.5847 | 0.4445 |
| Age×BMI | 1 | 1.0024029 | 1.00177 | 1.8542 | 0.1733 |
| Admit SpO2 | 1 | 0.9326736 | 1.05222 | 1.8764 | 0.1707 |
| Admit NLR | 1 | 1.1614857 | 1.06162 | 6.2591 | 0.0124 |
| Admit D-dimer | 1 | 0.9360373 | 1.04039 | 2.7825 | 0.0953 |
| Admit LDH | 1 | 2.9730846 | 1.35459 | 12.8919 | 0.0003 |
| Admit qSOFA | 1 | 2.7751367 | 1.446 | 7.6616 | 0.0056 |
LDH was categorised as normal, 1×<×<2× ULN, and >2× ULN.
BMI, body mass index; LDH, lactate dehydrogenase; NLR, neutrophil to lymphocyte ratio; qSOFA, Quick Sequential Organ Failure Assessment; SpO2, oxygen saturation; ULN, upper limit of normal.