|
Time interval
|
Grading |
Total |
| Grade I |
Grade II |
Grade III |
| Baseline |
0
.0% |
11
55.0% |
9
45.0% |
20
100.0% |
| 1 month |
4
20.0% |
11
55.0% |
5
25.0% |
20
100.0% |
| 3 months |
8
40.0% |
9
45.0% |
3
15.0% |
20
100.0% |
| 6 months |
9
45.0% |
9
45.0% |
2
10.0% |
20
100.0% |
There is a significant relationship between grades and time interval, P<0.01 |