NHCA 2021 Virtual Conference has ended
Welcome to the 2021 NHCA Virtual Conference Schedule, below you will find the schedule listed with 3 types of education sessions, Live Platform, Pre-recorded Platform and E-Poster Sessions. They will all be delivered a little differently so please take a little time to read the descriptions and understand how the conference will be laid out.

  • Live Platforms: NHCA is offering 7 live sessions with interactive Q&A and chat features over the two days of the live conference. If you are not able to watch these sessions live they will be recorded and playback will be available until March 19, 2021
  • ON DEMAND Pre-Recorded Platforms: There will be 28 pre-recorded sessions that will be released on the first day of the conference, these will be available to watch at your leisure and will be available until March 19, 2021. PLEASE NOTE: They are available longer than the 1-5 pm time on the schedule but we are not able to program them in like that!
  • ON DEMAND E-Poster Sessions: There will be 8 E-Poster sessions available to watch, each session is 15 minutes long and worth a quarter of a credit, in order to receive a full hour you will need to watch 4 poster sessions all the way through and complete and evaluation. These will be available as pre-recordings and will be available from the start of the conference until March 19, 2021
This means you have the opportunity for up to 19.0 CE credits at this years conference! (See ASHA AND AAA Brand Blocks below)

If you are trying to login to the learning center to attend the conference, please CLICK HERE to go to the Learning Center, this is just a digital agenda!
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Friday, February 26 • 12:00pm - 12:30pm
Live Session 3: A new noise exposure criteria is needed for complex noise.

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Wei Qiu, SUNY Plattsburgh
Meibian Zhang, Zhejiang Provincial CDC
Alice Suter, Suter and Associates

From the earliest standards for occupational noise exposure, impulse noise has been recognized as presenting an increased hazard for developing hearing loss. Animal research has focused primarily on the chinchilla as a surrogate for the human ear due to the similarity of sensitivity and frequency range of hearing. Research from the SUNY-Plattsburgh has demonstrated that hearing loss in chinchilla and the kurtosis of the noise exposure are monotonically related for a given equivalent noise exposure level, LAeq. The risk of hearing loss increased with higher kurtosis to a point where the amount noise-induced hearing loss plateaued. SUNY-Plattsburgh, NIOSH, and the Chinese, Zhejiang Provincial Centers for Disease Control researchers have conducted a series of investigations with Chinese workers who have a history of noise exposure in a stable occupational setting. The findings from these investigations confirm the animal research, the risk of occupational hearing loss increases with an increased kurtosis of the noise exposure. This paper will examine the potential for a new noise exposure standard that incorporates both level and kurtosis.

As a result of this Continuing Education Activity, readers will be able to:
1) Participants will learn about the differential risks of hearing loss due to continuous and impulsive noise.
2) Participants will learn about how kurtosis can characterize the composition of complex noise (combination of continuous and impulsive noise).
3) Participants will learn about different proposed metrics for assessing noise exposure with equivalent energy and kurtosis can be implemented to adjust for the excess risk of hearing loss in noise exposed populations.

avatar for William Murphy

William Murphy

William J. Murphy is a Captain in the United States Public Health Service Commissioned Corps and is coordinator for the Hearing Loss Prevention cross sector for the National Institute for Occupational Safety and Health. He is an active member of the National Hearing Conservation Association... Read More →

Friday February 26, 2021 12:00pm - 12:30pm CST