| 30 days vs. 45 days | 30 days vs. 3 months | 30 days vs. 6 months | 30 days vs. 9 months | ||||
N | N | N | N | |||||
G1 |
| |||||||
Improvement | 8 | 11 | 8 | 7 | 8 | 9 | 8 | 12 |
No reply | 10 | 5 | 10 | 7 | 10 | 3 | 10 | 0 |
P | 0.1854 | 1 | 0.1414 | 0.2543 | ||||
G2 |
| |||||||
Improvement | 29 | 38 | 29 | 24 | 29 | 22 | 29 | 25 |
No reply | 23 | 12 | 23 | 21 | 23 | 20 | 23 | 14 |
P | 0.0382* | 0.8403 | 0.8358 | 0.5189 |