Table 2.
Multiple logistic regression analysis according to several explanatory variables.
| Variable | OR | SE | 95% CI | p |
|---|---|---|---|---|
| Model 1. Belief that influenza is a serious illness (Sample size = 586) | ||||
| Log likelihood = −329.38, χ2 = 149.99 (8 df), p < 0.0001 | ||||
| Perceived risk of getting infected with influenza | 1.34 | 0.05 | 1.24–1.45 | <0.001 |
| Belief that HCWs are at risk of getting infected with influenza | 3.75 | 1.24 | 1.96–7.17 | <0.001 |
| Not being concerned at all about the safety of the influenza vaccination | 1.5 | 0.29 | 1.03–2.18 | 0.036 |
| Having received the influenza vaccine only in the current season | 1.47 | 0.30 | 0.99–2.18 | 0.055 |
| Belief that an infected HCW can pass the influenza virus on to their patients | 1.60 | 0.45 | 0.92–2.77 | 0.094 |
| Scientific journals, meetings, and colleagues as sources of information | 1.38 | 0.31 | 0.89–2.14 | 0.148 |
| Needing additional information about influenza vaccination | 1.33 | 0.29 | 0.87–2.05 | 0.181 |
| Length of practice in years | 1.01 | 0.01 | 0.99–1.02 | 0.358 |
| Model 2. Having received the influenza vaccine only in the current season (Sample size = 549) | ||||
| Log likelihood = −206.98, χ2 = 345.36 (8 df), p < 0.0001 | ||||
| Not having underlying chronic medical conditions | 0.28 | 0.1 | 0.14–0.56 | <0.001 |
| Having indicated that influenza and COVID-19 share similar symptoms as a reason to be vaccinated | 3.93 | 1.13 | 2.24–6.9 | <0.001 |
| Not having been vaccinated regardless of COVID-19 | 0.04 | 0.01 | 0.02–0.07 | <0.001 |
| Belief that an infected HCW cannot pass the influenza virus on to their patients | 0.47 | 0.16 | 0.24–0.91 | 0.026 |
| Belief that influenza is not a serious illness | 0.65 | 0.17 | 0.39–2.11 | 0.114 |
| Older | 1.02 | 0.02 | 0.99–1.06 | 0.118 |
| Length of practice in years | 0.97 | 0.02 | 0.94–1.01 | 0.154 |
| No perceived risk of getting infected with influenza | 0.95 | 0.05 | 0.86–1.05 | 0.35 |
| Model 3. Having indicated that influenza and COVID-19 share some similar symptoms as a reason to be vaccinated (Sample size = 593) | ||||
| Log likelihood = −279.71, χ2 = 220.57 (9 df), p < 0.0001 | ||||
| Having received the influenza vaccine both in the current and in the previous season | 0.13 | 0.03 | 0.08–0.2 | <0.001 |
| Belief that an infected HCW cannot pass the influenza virus on to their patients | 0.16 | 0.04 | 0.09–0.29 | <0.001 |
| Younger | 0.96 | 0.01 | 0.94–0.98 | 0.001 |
| Scientific journals, meetings, and colleagues as sources of information | 1.83 | 0.47 | 1.11–3.04 | 0.018 |
| Professional role | ||||
| Physician | 1.00 * | |||
| Nurse | 0.58 | 0.14 | 0.35–0.95 | 0.032 |
| Other | 0.68 | 0.21 | 0.37–1.25 | 0.218 |
| Belief that HCWs are at risk of getting infected with influenza | 1.83 | 0.6 | 0.96–3.5 | 0.065 |
| Being married or cohabitant | 1.61 | 0.44 | 0.94–2.76 | 0.085 |
| Having underlying chronic medical conditions | 1.52 | 0.44 | 0.86–2.68 | 0.149 |
* Reference category.