BioMed Research International / 2015 / Article / Tab 5

Research Article

Over-the-Counter Hearing Aids: A Lost Decade for Change

Table 5

Statistical analysis of the OSPL90, HFA FOG, and EIN data between present study and Cheng and McPherson [2] study.

ParameterStudyNumber of testing conditionsMeans value

OSPL 90-peak frequencyPresent study131361.5 Hz0.357
Cheng and McPherson161193.8 Hz

OSPL 90-peak sound pressure levelPresent study13124.7 dB SPL0.653
Cheng and McPherson16125.9 dB SPL

HFA FOGPresent study1332.5 dB0.422
Cheng and McPherson1636.1 dB

EINPresent study1333.1 dB SPL0.124
Cheng and McPherson1628.4 dB SPL