Without

Gain

Mixed^a

Conductive^a

U^b

Mixed^a

Conductive^a

U^b

p^c

Sound-field pure tone audiometry

Air-conduction threshold at 250 Hz

60 (55 - 65)

58 (55 - 64)

0.34

38 (29 - 45)

40 (26 - 45)

0.81

0.339

Air-conduction threshold at 500 Hz

68 (65 - 70)

63 (60 - 65)

0.03

43 (35 - 45)

40 (35 - 50)

0.76

0.263

Air-conduction threshold at 1000 Hz

60 (59 - 70)

60 (50 - 70)

0.5

38 (25 - 45)

40 (35 - 50)

0.04

0.01

Air-conduction threshold at 2000 Hz

60 (50 - 70)

55 (50 - 60)

0.27

35 (24 - 41)

38 (30 - 40)

0.3

0

Air-conduction threshold at 3000 Hz

65 (55 - 68)

58 (48 - 60)

0.01

38 (30 - 45)

33 (30 - 40)

0.34

0.291

Air-conduction threshold at 4000 Hz

70 (55 - 85)

55 (51 - 60)

0.02

38 (25 - 41)

33 (26 - 39)

0.54

0.226

Air-conductionthreshold PTA

63 (57 - 70)

62 (51 - 66)

0.15

38 (31 - 43)

39 (33 - 46)

0.14

0.013

Sound-fieldspeechaudiometry

Percent of maximum speech discrimination at 60 dB

0 (0 - 11.25)

0 (0 - 25)

0.78

90 (68 - 100)

100 (73 - 100)

0.17

0.074

APHAB scales

Ease of communication

66 (49 - 92)

52 (31 - 79)

0.347

57 (27 - 82)

37 (11 - 78)

0.32

0.284

Backgroundnoise

83(66 - 97)

52 (30 - 71)

0.015

72 (23 - 79)

38 (-2 - 61)

0.16

0.385

Reverberation

83 (73 - 88)

58 (36 - 79)

0.03

64 (49 - 71)

33 (-5 - 66)

0.08

0.431

Aversiveness

6 (1 - 13)

5 (1 - 26)

0.522

−46 (−60 - −29)

−51 (−68 - −18)

0.6

0.595

APHAB global score

60(50 - 68)

49 (28 - 61)

0.104

34 (15 - 47)

23 (−8.25 - 39)

0.17

0.488