Table 1.
Multivariate analysis of the factors associated with Omicron variant infections.
| Delta (ref) /Omicron | Initial and final analyses |
Age-dependent analyses (final) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| < 22 years | 22–39 years | ≥ 40 years | ||||||||||
| OR | 95% CI | P value | OR | 95% CI | P value | OR | 95% CI | P value | OR | 95% CI | P value | |
| Age | 0.99 | [0.98;0.99] | <0.01 | Not Applicable | Not Applicable | Not Applicable | ||||||
| Gender (Female) | 1.11 | [0.95;−1.31] | ns | |||||||||
| Vaccination* | 1.48 | [1.37;1.61] | <0.01 | 1.85 | [1.55;2.21] | <0.01 | 1.32 | [1.17;1.49] | <0.01 | 1.39 | [1.19;1.61] | <0.01 |
| Symptoms⁎⁎ | 1.24 | [1.08;1.42] | <0.01 | 1.29 | [1.05;1.58] | 0.01 | ||||||
| Nasopharyngeal RNA viral load | 0.98 | [0.91;1.05] | ns | |||||||||
⁎
compared to unvaccinated patients.
⁎⁎
compared to asymptomatic patients.