Table 2:
Adjusted variables in the studies that investigate the effect of influenza vaccine on the risk of hospitalization
| First author (Reference number) | Year | Adjusted variables |
|---|---|---|
| Govaert (29) | 1994 | Age, sex, previous influenza vaccination |
| Flucad (31) | 2008 | Age, gender, weight, height, residence, employment status, hypertension, diabetes, smoking, total cholesterol, LDL-cholesterol, HDL-cholesterol, triglycerides, creatinine, clinical history, actual treatment, inflammatory markers and infectious burden |
| IVCAD (33) | 2009 | Age, sex, previous influenza vaccination, hypertension, diabetes, smoking |
| De Villiers (32) | 2009 | Fever ≥37 degrees, cough, sore throat, age, sex, runny nose, stuffy nose, headache |
| Phrommintikul (34) | 2011 | Age, sex, serum creatinine, treatment with angiotensin converting enzyme inhibitors and coronary arteries |
| FLUVACS (30) | 2004 | Age, sex, anterior infarction, stemi, hypertension, diabetes |
| Fröbert (35) | 2021 | - |
| Loeb (28) | 2022 | - |