Barriers to hearing conservation programs in combat arms occupations

Area of Science:

• Military Medicine
• Occupational Health
• Audiology

Background:

• Canadian military has had a hearing conservation program for over 45 years.
• Despite this, noise-induced hearing loss (NIHL) prevalence is increasing.
• A focus group study was conducted to understand knowledge, attitudes, and behaviors regarding hearing loss prevention in combat arms occupations.

Purpose of the Study:

• To investigate soldiers' understanding of hearing loss risks and prevention.
• To identify barriers to hearing protection compliance in high-noise military environments.
• To gather insights for improving hearing conservation program effectiveness.

Main Methods:

• Focus groups were conducted with 4-5 participants each from Infantry Soldiers, Artillerymen, Armored Soldiers, and Combat Engineers.
• Participants had at least 5 years of service and held ranks of Warrant Officer, Sergeant, or Master Corporal.
• Discussions explored susceptibility, consequences of hearing loss, hearing protection benefits/drawbacks, and user preferences.

Main Results:

• Infantry Soldiers and Artillerymen showed moderate to severe hearing loss; Armored Soldiers and Combat Engineers reported no perceived hearing changes.
• Primary concerns with hearing protection included interference with auditory warnings and orders, and incompatibility with other military gear.
• Noise exposure sources included weapons, explosives, and vehicles.

Conclusions:

• Good hearing is crucial for the combat arms occupations studied.
• Hearing loss and/or hearing protection use negatively impacted situational awareness, communication, and auditory task performance.
• Soldiers desire opportunities to trial protective devices, clear usage policies, and adequate funding for hearing protection.