Table 2. Descriptive statistics (means and percentages) in the intervention (n=120) and the control group (n=118) .
| Variables | Before the intervention | After the intervention | |
| Group | Mean+ SD | Mean+ SD | |
| Perceived vulnerability | Intervention | 8.17+2.19 | 12.01+2.87 |
| Control | 8.01+2.28 | 8.29+2.3 | |
| P-value | 0.567 | <0.001 | |
| Perceived severity | Intervention | 19.60+2.55 | 23.27+2.19 |
| Control | 19.55+2.58 | 19.20+2.64 | |
| P-value | 0.863 | <0.001 | |
| Intrinsic rewards | Intervention | 44.55+3.70 | 38.73+2.92 |
| Extrinsic rewards | Control | 44.50+2.19 | 44.54+3.70 |
| P-value | 0.917 | <0.001 | |
| Response cost | Intervention | 48.76+3.33 | 38.73+4.30 |
| Control | 48.86+3.14 | 48.38+3.20 | |
| P-value | 0.816 | <0.001 | |
| Self-efficacy | Intervention | 9.61+2.19 | 14.81+2.48 |
| Control | 9.65+0.87 | 9.94+1.69 | |
| P-value | 0.772 | <0.001 | |
| Response efficacy | Intervention | 15.16+1.76 | 19.73+2.81 |
| Control | 15.09+1.93 | 15.16+2.78 | |
| P-value | 0.622 | <0.001 | |
| Protection motivation | Intervention | 7.50+2.15 | 10.77+2.58 |
| Control | 7.41+2.01 | 7.38+1.96 | |
| P-value | 0.754 | <0.001 | |