Adjusted HRs for all-cause mortality and its covariables, total group (n=223 580)
| Covariable | All-cause mortality HR | 95% CI |
| Influenza vaccination in 2019 (yes vs no) | 0.90 | 0.83 to 0.97 |
| Age group, relative to group 0–59 years | ||
| 60–74 years | 2.90 | 2.45 to 3.42 |
| 75+ years | 11.00 | 9.35 to 12.95 |
| Sex (female vs male) | 0.82 | 0.76 to 0.89 |
| GP-diagnosed COVID-19 (yes vs no) | 10.90 | 8.51 to 13.96 |
| Cardiovascular disease (yes vs no) | 1.76 | 1.62 to 1.91 |
| Pulmonary disease (yes vs no) | 1.96 | 1.80 to 2.14 |
| Diabetes mellitus (yes vs no) | 1.54 | 1.41 to 1.67 |
| Impaired resistance to infections (yes vs no) | 2.24 | 1.98 to 2.53 |
| Chronic renal insufficiency (yes vs no) | 1.87 | 1.67 to 2.07 |
| Respiratory disorders by neurological conditions (yes vs no) | 1.77 | 1.58 to 2.00 |
| Number of acute respiratory infection consultations in 2019, relative to 0 | ||
| 1 | 1.25 | 1.10 to 1.42 |
| ≥2 | 1.62 | 1.43 to 1.84 |
GP, general practitioner.