Table 3.

The Hearing Scale Test and the mean difference between thresholds (dB) for the Ear Scale app and sound-treated booth (N=170 ears).

Ear Scale app with Hearing Scale Test		Sound-treated booth in pure-tone screening
		Mean (SD)	n
Left ear (mean thresholds)
	≤5 dB (Sa1)	4 (3.14)	11
	6-10 dB (S2)	7 (2.7)	32
	11-15 dB (S3)	8 (2.9)	28
	16-20 dB (S4)	11 (4.2)	9
	21-25 dB (S5)	14 (4.3)	4
	26-30 dB (S6)	0	0
	31-35 dB (S7)	31 (NaNb)	1
	36-40 dB (S8)	0	0
	41-45 dB (S9)	0	0
	46-50 dB (S10)	0	0
Right ear (mean thresholds)
	≤5 dB (S1)	6 (2.1)	5
	6-10 dB (S2)	7 (3.3)	26
	11-15 dB (S3)	10 (2.6)	31
	16-20 dB (S4)	11 (3.8)	18
	21-25 dB (S5)	11 (2.6)	4
	26-30 dB (S6)	0	0
	31-35 dB (S7)	0	0
	36-40 dB (S8)	36 (NaN)	1
	41-45 dB (S9)	0	0
	46-50 dB (S10)	0	0
Both ears (mean thresholds)
	≤5 dB (S1)	5 (2.9)	16
	6-10 dB (S2)	7 (3.0)	58
	11-15 dB (S3)	9 (2.8)	59
	16-20 dB (S4)	11 (3.8)	27
	21-25 dB (S5)	12 3.6)	8
	26-30 dB (S6)	0	0
	31-35 dB (S7)	31 (NaN)	1
	36-40 dB (S8)	36 (NaN)	1
	41-45 dB (S9)	0	0
	46-50 dB (S10)	0	0

^aS: stratified hearing scale.

^bNaN: not a number.