| Type
of response |
Treatment with zinc sulphate |
Treatment with placebo |
| After 1 month |
After 2 months |
After 3 months |
After 4 months |
After 5 months |
After 6 months |
| No. |
% |
No. |
% |
No. |
% |
No. |
% |
No. |
% |
No. |
% |
| Grade 0 |
21 |
56.76 |
13 |
35.14 |
10 |
27.02 |
10 |
27.02 |
8 |
21.62 |
8 |
21.62 |
| Grade I |
9 |
24.33 |
8 |
21.62 |
5 |
13.51 |
5 |
13.51 |
6 |
16.21 |
6 |
16.21 |
| Grade II |
7 |
18.91 |
16 |
43.24 |
22 |
59.45 |
22 |
59.45 |
23 |
62.16 |
23 |
62.16 |
| Total |
37 |
100 |
37 |
100 |
37 |
100 |
37 |
100 |
37 |
100 |
37 |
100 |
|
