Table 4. Model effects from the adjusted logistic regression model.
| Term | Odds ratio | 95% confidence interval |
|---|---|---|
| Age (80:50 years) | 4.25 | 3.10–5.83 |
| Female gender | 1.56 | 1.45–1.67 |
| Wild/Delta:Influenza | 3.54 | 3.02–4.15 |
| Omicron:Influenza | 1.56 | 1.32–1.84 |
| Tumor disease | 2.24 | 1.98–2.53 |
| Diabetes mellitus | 1.18 | 1.09–1.27 |
| Lipid metabolic disorder | 0.67 | 0.61–0.74 |
| Obesity | 1.14 | 0.97–1.34 |
| Heart Failure | 1.50 | 1.38–1.63 |
| Ischemic heart disease | 1.12 | 1.02–1.23 |
| Cerebrovascular disease | 1.43 | 1.28–1.59 |
| Liver cirrhosis/fibrosis | 2.63 | 1.96–3.51 |
| COPD | 1.29 | 1.15–1.45 |
Compared to influenza infection, the omicron variant had a 1.56-fold odds and the wild-type to delta variant a 3.54-fold odds of mortality. The odds ratios above were adjusted for a median age of 71 years and the influenza group.