Table 7.
Logistic regression analysis of patients in the Delta group and the Omicron group.
| Univariable OR (95% CI) | P value | Multivariable OR (95% CI) | P value | |
|---|---|---|---|---|
| Age | 1.0166 (1.0052–1.028) | 0.0041 | – | – |
| Vaccination, dose (compared with 0 dose) | ||||
| 1 | 0.4614 (0.0897–1.9525) | 0.3863 | – | – |
| 2 | 0.9207 (0.3978–2.2363) | 0.9817 | – | – |
| 3 | 0.0127 (0–0.0642) | <0.0001 | – | – |
| IL–6, pg/mL | 0.8827 (0.828–0.9411) | 0.0001 | – | – |
| PCT, ng/mL | – | <0.0001 | – | – |
| IgG | 0.7216 (0.5706–0.9126) | 0.0065 | – | – |
| Fever | 2.4572 (1.5359–3.9314) | 0.0002 | – | – |
| Cough | 6.1675 (3.3546–11.339) | <0.0001 | – | – |
| Headache | 2.5485 (1.2568–5.1677) | 0.0095 | – | – |
| Stuffy nose | 2.6504 (1.4155–4.9627) | 0.0023 | – | – |
| Running nose | 1.9367 (1.0191–3.6806) | 0.0436 | – | – |
| Taste loss | 43.1109 (9.8918–187.8876) | <0.0001 | – | – |
| Anosmia | 19.219 (7.0684–52.2565) | <0.0001 | – | – |
| Diarrhea | 5.1217 (2.1947–11.9525) | 0.0002 | – | – |
| Others | 74.3057 (36.6452–150.67) | <0.0001 | 17.7151 (7.4181–42.3056) | <0.0001 |
Note: The PCT univariate or value is not accurate because the variable is continuous and the degree of variation is small, resulting in the inability to accurately estimate the change multiple of the PCT by 1 unit due to the PCT increment.
We use stepwise regression to screen variables. Therefore, a meaningful index in the univariate logistic regression may not have corresponding results in the multivariate logistic regression, and "–" is used to indicate that the index has no corresponding parameters in the multivariate logistic regression analysis.