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. Author manuscript; available in PMC: 2018 Jul 31.
Published in final edited form as: Laryngoscope. 2017 Mar 16;127(10):E340–E346. doi: 10.1002/lary.26540

Table 1.

Occupational “Very Loud” Sounds Exposure With Duration of Exposure and Use of Hearing Protection in the Last Year.

N (millions) SE (millions) Percent Total (%) SE (%)
Very Loud Sounds 48.9 1.1 21.7 0.4
Exposure
 In last year 5.0 0.3 10.2 0.5
 Before last year 29.0 0.8 59.5 0.9
 During and before last year 14.8 0.5 30.3 0.8
Duration of Exposure
 Less than 3 months 3.3 0.2 6.7 0.4
 3–11 months 4.6 0.2 9.5 0.5
 1–2 years 6.0 0.4 12.3 0.7
 3–4 years 5.3 0.3 11.0 0.5
 5–9 years 7.1 0.3 14.7 0.6
 10–14 years 5.9 0.3 12.1 0.5
 15 years or more 16.4 0.5 33.7 0.9
Hearing Protection Used in the Last 12 Months
N (Millions) SE (Millions) Percent Total (%) SE (%)
 Always 2.2 0.2 43.6 2.7
 Sometimes 0.9 0.1 18.2 2.2
 Never 1.9 0.2 38.2 2.7

SE = standard error of the population estimate.