Table 3. Score decline comparison between placebo and 50 and 200 µg of selenium.
| Score decline | Placebo No. (%) | 50 µg selenium No. (%) | 200 µg selenium No. (%) |
| 10-15 | 11 (18.3) | 27 (45) | 30 (50) |
| 15-20 | 0 | 4 (7) | 6 (10) |
| Total | 11 (18.3) | 31 (52) | 36 (60) |
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