TABLE 3.
Linear regression model for predicting experienced SWBDsʼ donation intention within 3 weeks
| Predictor | β | SE | t | P | Tolerance | VIF |
|---|---|---|---|---|---|---|
| Constant | 1.99 | 0.37 | 5.44 | <.001 | ||
| Group | ||||||
| 1 | 0.22 | 0.07 | 3.04 | .002 | 0.96 | 1.05 |
| 2 | Reference | |||||
| Sex | ||||||
| Male | −0.18 | 0.07 | −2.38 | .018 | 0.94 | 1.07 |
| Female | Reference | |||||
| Age | 0.01 | 0.00 | 1.92 | .055 | 0.72 | 1.40 |
| Education level | −0.02 | 0.05 | −0.33 | .741 | 0.92 | 1.08 |
| Donation frequency | 0.00 | 0.01 | 0.45 | .653 | 0.77 | 1.29 |
| Relational closeness | ||||||
| Yes | 0.04 | 0.07 | 0.50 | .615 | 0.99 | 1.01 |
| No | Reference | |||||
| Concern | 0.02 | 0.04 | 0.52 | .605 | 0.85 | 1.17 |
| Perceived knowledge | 0.22 | 0.04 | 4.99 | <.001 | 0.88 | 1.13 |
| Perception of blood need | 0.21 | 0.05 | 4.16 | <.001 | 0.86 | 1.16 |
| Donation risk | −0.23 | 0.05 | −4.72 | <.001 | 0.76 | 1.31 |
| Total R 2 = 0.13 | ||||||
SWBDs, street whole blood donors.