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Table 2 Comparison between the values of speech audiometry (SRT and SD%) at different studied time points (initial before starting of treatment, after 1 week, after 2 weeks, and after 1 month of treatment) showing median and mean rank

From: Effectiveness of oral corticosteroids (prednisolone) in sensorineural hearing loss post COVID-19

Speech audiometry

Evaluation

Median

Mean rank

Friedman test

p-value

Post hoc test (Wilcoxon signed-rank test)

Speech discrimination (SD%)

Initial

84.0

1.13

< 0.001*

P1 < 0.001*

P2 < 0.001*

P3 < 0.001*

P4 = 0.001*

P5 < 0.001*

P6 = 0.002*

One week

84.0

2.18

Two weeks

88.0

3.03

One month

96.0

3.68

SRT (dB nHL)

Initial

45.0

4.0

< 0.001*

P1 < 0.001*

P2 < 0.001*

P3 < 0.001*

P4 < 0.001*

P5 < 0.001*

P6 = 0.007*

One week

35.0

2.88

Two weeks

35.0

1.83

One month

25.0

1.30

  1. *Significant at p < 0.05. Pairwise comparison revealed significant differences (P < 0.05*). P1, initial versus 1 week. P2, initial versus 2 weeks. P3, initial versus 1 month. P4, 1 week versus 2 weeks. P5, 1 week versus 1 month. P6, 2 weeks versus 1 month