Table 2 Multivariable regression analysis for factors associated with number of ILI episodes as outcome
Model 1: Without time | Model 2: With time | |||||
|---|---|---|---|---|---|---|
Characteristics | aIRR1 | 95% CI1 | p-value | aIRR1 | 95% CI1 | p-value2 |
Time of last Vaccine | 1.32 | 1.07,1.63 | 0.009 | |||
Number of Vaccines | ||||||
0 | — | — | — | — | ||
1 or 2 | 1.29 | 0.98,1.71 | 0.069 | 0.85 | 0.56,1.30 | 0.451 |
3 | 1.56 | 1.22,2.03 | 5.63e−04 | 0.89 | 0.54,1.46 | 0.641 |
4 | 1.70 | 1.27,2.28 | 3.76e−04 | 0.75 | 0.38,1.48 | 0.404 |
Age | 0.98 | 0.97,0.99 | 5.57e−09 | 0.98 | 0.97,0.99 | 9.14e−09 |
Sex | 1.12 | 0.94,1.32 | 0.210 | 1.12 | 0.94,1.33 | 0.192 |
Body Mass Index (kg/m2) | 1.01 | 1.00,1.02 | 0.147 | 1.01 | 1.00,1.02 | 0.142 |
Any Comorbidity | 1.20 | 1.01,1.41 | 0.032 | 1.19 | 1.00,1.40 | 0.045 |
Active Smoking | 1.11 | 0.92,1.34 | 0.276 | 1.12 | 0.93,1.35 | 0.241 |
Number of Positive SARS-CoV-2 Swabs | 1.21 | 1.11,1.32 | 1.94e−05 | 1.20 | 1.10,1.31 | 3.06e−05 |
Patient Contact | 1.02 | 0.88,1.18 | 0.791 | 1.02 | 0.88,1.18 | 0.820 |
Home with Children | 0.95 | 0.81, 1.11 | 0.495 | 0.95 | 0.81, 1.12 | 0.548 |
Influenza vaccination season 2023/2024 | 0.84 | 0.71,0.99 | 0.036 | 0.84 | 0.71, 0.99 | 0.035 |
