Protocol | Nothing | Low | Moderate | Total |
| |||
Pr1 | 19 | 51.35% | 17 | 45.95% | 1 | 2.70% | 37 | <0.0001 |
Pr2 | 29 | 69.05% | 11 | 26.19% | 2 | 4.76% | 42 | |
Pr3 | 23 | 51.11% | 19 | 42.22% | 3 | 6.67% | 45 | |
Pr4 | 29 | 70.73% | 12 | 29.27% | 0 | 0.00% | 41 |