Table 4 Mean hearing gains according to initial PTA in Group A and B & Group C and D.

From: The therapeutic effect of hyperbaric oxygen therapy in patients with severe to profound idiopathic sudden sensorineural hearing loss

Initial PTA

Group A

(Oral steroid + HBOT)

(n = 17)

Group B

(Oral steroid)

(n = 10)

p-value

80–89 dB

47.0 ± 38.3

65.5 ± 9.2

1.000b

90–99 dB

70.5 ± 13.5

37.5 ± 41.7

0.533b

 ≥ 100 dB

48.3 ± 22.6

44.0 ± 14.9

0.635b

Total

53.3 ± 24.5

47.0 ± 20.7

0.503b

Initial PTA

Group C

(Oral steroid + ITS + HBOT)

(n = 37)

Group D

(Oral steroid + ITS)

(n = 49)

p-value

80–89 dB

36.3 ± 30.6

52.6 ± 27.1

0.106b

90–99 dB

56.1 ± 19.2

53.6 ± 24.7

0.802b

 ≥ 100 dB

31.8 ± 23.6

33.9 ± 22.5

0.773b

TOTAL

39.1 ± 26.3

43.3 ± 25.6

0.455a

  1. Data are presented as mean ± standard error of the mean.
  2. HBOT, Hyperbaric oxygen therapy; PTA, pure-tone average; ITS, Intratympanic steroids.
  3. ap-value were calculated by student-T test.
  4. bp-value were calculated by Mann–whitney test.
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