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. Author manuscript; available in PMC: 2012 Mar 1.
Published in final edited form as: Int J Audiol. 2011 Mar;50(Suppl 1):S21–S31. doi: 10.3109/14992027.2010.540722

Table 4.

Number and Percent of Ears that Referred Pure-Tone-Average (PTA) Hearing Screening Tests at 10, 15, 20, and 25 dB HL (with Confidence Intervals).

Number of Ears That Refer at LFPTA 0.5, 1, and 2 kHz Number of Ears That Refer at HFPTA 3, 4, and 6 kHz
PTA Threshold n % (CI) n % (CI)
>25 dB HL 0 0 1 0.89 (0,2.6)
>20 dB HL 2 1.79 (0,4.2) 2 1.79 (0,4.2)
>15 dB HL 4 3.57 (0.1,7.0) 9 8.04 (0,13.1)
>10 dB HL 29 25.9 (17.8,34.0) 28 25.00 (0,33.0)