Table 3.
Univariate analyses between HBM and TPB variables and the intention to get vaccinated against COVID-19
| DO not intend to get vaccinated (n = 78) |
Intend to get vaccinated (n = 320) |
t-test | P value (two-tail) | Effect size | |
|---|---|---|---|---|---|
| HBM covariates | Mean (SD) | Mean (SD) | Cohen’s d | ||
| Perceived Susceptibility | 2.89 (1.54) | 4.94 (1.12) | −11.09 | 0.00 | 1.52 |
| Perceived Severity | 2.48 (1.24) | 3.36 (1.33) | −5.28 | 0.00 | 0.68 |
| Perceived Benefits | 3.10 (1.44) | 5.37 (0.79) | −13.41 | 0.00 | 1.95 |
| Perceived Barriers | 2.55 (1.59) | 2.42 (1.51) | 0.70 | 0.48 | 0.08 |
| Cues to action | 2.51 (1.33) | 4.16 (1.26) | −10.25 | 0.00 | 1.27 |
| Health motivation | 4.03 (1.51) | 4.08 (1.36) | −0.32 | 0.75 | 0.03 |
| TPB covariates | |||||
| Attitude | 2.55 (1.59) | 2.42 (1.52) | 0.70 | 0.48 | 0.08 |
| Subjective norms | 3.49 (1.36) | 5.16 (0.85) | −10.42 | 0.00 | 1.47 |
| PBC | 4.91 (1.51) | 5.08 (1.24) | −0.95 | 0.35 | 0.12 |
| Self-efficacy | 3.53 (1.44) | 5.20 (1.06) | −9.67 | 0.00 | 1.32 |
COVID-19 vaccination intention measured by the item: “I want to get vaccinated against the COVID-19 virus soon in case there is a vaccine available”, on a 1–6 agreement scale
HBM and TPB Items Response scale: 1–6 agreement