Grade | Day 1 | Day 7 | Day 14 | |
Group A (n = 25) | 0 | 15 (60%) | 20 (80%) | 22 (88%) |
I | 4 (16%) | 1 (4%) | 3 (12%) | |
II | 4 (16%) | 3 (12%) | 0 (0%) | |
III | 2 (8%) | 1 (4%) | 0 (0%) | |
IV | 0 (0%) | 0 (0%) | 0 (0%) | |
Group B (n = 25) | 0 | 13 (52%) | 16 (64%) | 21 (84%) |
I | 2 (8%) | 3 (12%) | 3 (12%) | |
II | 7 (28%) | 4 (16%) | 1 (4%) | |
III | 2 (8%) | 2 (8%) | 0 (0%) | |
IV | 1 (4%) | 0 (0%) | 0 (0%) | |
Group C (n = 25) | 0 | 9 (36%) | 12 (48%) | 20 (80%) |
I | 2 (8%) | 5 (20%) | 3 (12%) | |
II | 2 (8%) | 5 (20%) | 1 (4%) | |
III | 8 (32%) | 2 (8%) | 1 (4%) | |
IV | 4 (16%) | 1 (4%) | 0 (0%) |