| 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 | 8 | 8 | 7 | 8 | 10 | 8 | 12 |
No reply | 6 | 6 | 6 | 7 | 6 | 4 | 6 | 0 |
P | 1.2964 | 1 | 0.6946 | 0.0171* | ||||
G2 |
| |||||||
Improvement | 37 | 49 | 37 | 31 | 37 | 31 | 37 | 32 |
No reply | 33 | 17 | 33 | 23 | 33 | 28 | 33 | 17 |
P | 0.0127* | 0.7163 | 1 | 0.1918 |