Occupational Medicine Advance Access originally published online on February 1, 2007
Occupational Medicine 2007 57(3):203-209; doi:10.1093/occmed/kql180
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Hearing loss, accidents, near misses and job losses in firefighters
Salus Occupational Health & Safety, Centrum Park, Hagmill Road, Coatbridge ML5 4TD, UK
Background The hearing losses of workers exposed to occupational noise have been extensively documented, but no information exists on the level of hearing loss which results in job loss.
Aim To define levels of hearing loss associated with ill-health retirement (IHR), comparing them with existing standards and assessing the extent to which poor hearing contributes to accidents and near misses to assist the development of rational standards for retention.
Methods All UK local authority fire brigades were approached for information on IHRs due to audiological problems, accident/near-miss totals and the numbers thought to be due to poor hearing in a 60-month period beginning in 1997.
Results Only 15/59 (25%) of brigades provided all information requested, although 50 (85%) and 32 (52%) supplied medical and safety information, respectively, which was used for analysis. Of 3366 IHRs, 135 (4%) were due to audiological problems. When compared to a control group of firefighters of similar age, those taking IHR had worse mean and median hearing losses in all grouped frequencies in both ears than the controls, and this difference always reached statistical significance (P < 0.001), but there was considerable overlap in terms of range of hearing loss in each group. Only 41/31 274 (0.13%) of accidents/near misses reported were believed to result from hearing problems, and seven of these were related to device failure.
Conclusions Retention criteria based on audiometric grounds alone may result in unnecessary IHRs. Poor hearing is only responsible for a small proportion of accidents and near misses.
Keywords Acoustic neuroma; deafness; ENT; local government; NIHL; noise induced hearing loss; occupational deafness; occupational noise
Correspondence to: Christopher Ide, Salus Occupational Health & Safety, Centrum Park, Hagmill Road, Coatbridge ML5 4TD, UK. Tel: +44 1236 438203; fax: +44 1236 438180; e-mail: christopher_ide{at}yahoo.co.uk