Table 1 Comparison between the values of PTA at different studied time points (initial before starting of treatment, after 1 week, after 2 weeks, and after 1 month of treatment)
From: Effectiveness of oral corticosteroids (prednisolone) in sensorineural hearing loss post COVID-19
PTA frequency (Hz) | Evaluation | Median | Mean rank | Friedman test p-value | Post hoc test (Wilcoxon signed-rank test) |
|---|---|---|---|---|---|
250 Hz | Initial | 50.0 | 3.88 | < 0.001* | P1 < 0.001* P2 < 0.001* P3 < 0.001* P4 < 0.001* P5 < 0.001* P6 = 0.001* |
One week | 40.0 | 3.13 | |||
Two weeks | 30.0 | 1.80 | |||
One month | 25.0 | 1.20 | |||
500 Hz | Initial | 42.5 | 3.93 | < 0.001* | P1 < 0.001* P2 < 0.001* P3 < 0.001* P4 < 0.001* P5 < 0.001* P6 = 0.010* |
One week | 35.0 | 2.98 | |||
Two weeks | 32.5 | 1.80 | |||
One month | 27.5 | 1.30 | |||
1000 Hz | Initial | 42.5 | 3.90 | < 0.001* | P1 < 0.001* P2 < 0.001* P3 < 0.001* P4 < 0.001* P5 < 0.001* P6 = 0.010* |
One week | 35.0 | 2.95 | |||
Two weeks | 30.0 | 1.83 | |||
One month | 25.0 | 1.33 | |||
2000 Hz | Initial | 45.0 | 3.83 | < 0.001* | P1 < 0.001* P2 < 0.001* P3 < 0.001* P4 < 0.001* P5 < 0.001* P6 = 0.014* |
One week | 37.5 | 2.98 | |||
Two weeks | 30.0 | 1.88 | |||
One month | 30.0 | 1.33 | |||
4000 Hz | Initial | 45.0 | 3.80 | < 0.001* | P1 = 0.001* P2 < 0.001* P3 < 0.001* P4 = 0.001* P5 < 0.001* P6 = 0.001* |
One week | 45.0 | 2.85 | |||
Two weeks | 35.0 | 2.05 | |||
One month | 30.0 | 1.30 | |||
8000 Hz | Initial | 45.0 | 3.83 | < 0.001* | P1 = 0.001* P2 < 0.001* P3 < 0.001* P4 < 0.001* P5 < 0.001* P6 = 0.005* |
One week | 45.0 | 3.18 | |||
Two weeks | 40.0 | 1.70 | |||
One month | 35.0 | 1.30 |