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Tinnitus impact on the patients’ life quality before and after treatment - mean values, standard deviations and variance analysis.
| Initial | Post | ||
|---|---|---|---|
| Mean value | 6,12 | 5,49 | |
| Drug | Standard deviation | 1,82 | 2,39 |
| N |
43 | 43 | |
| Mean value | 5,71 | 5,00 | |
| Placebo | Standard deviation | 1,66 | 1,96 |
| N | 42 | 42 |
