Table 1.

A summary of the prevalence of noise-induced hearing loss among workers in the world by year reported by occupation by country, 2009-2019

Year of reported	Countries/regions	Population/exposure/sex/age	Prevalence (hearing threshold)	Reference
2009	French	Policemen (N = 887) Mean age: 37.6 years	28% (≧ 30 dB)	[31]
		Civil servants (N = 805) Mean age: 41.8 years	16% (≧ 30 dB)
2010	Norway	General population (N = 49,948) Mean age: 48.0 years (20-101)	10.3% (≧ 35 dB)	[32]
2011	Dutch	Construction/male workers (N = 24,670) Mean age: 44.3 years	22.1% (≧ 40 dB)	[33]
2012	Ghana	Stone crushing workers (N = 140; male: 137, female: 3) Mean age: 42.6 years	21.5% (≧ 34 dB)	[34]
2012	South Africa	Gold miners (underground noise exposure; N = 33,749)	11.2% (≧ 40 dB)	[35]
		Gold miners (surface noise exposure; N = 7456)	14.1% (≧ 40 dB)
2013	Zimbabwe	Mining workers (N = 169; male = 158, female = 11) Mean age: 34.8 years	37% (≧ 40 dB)	[36]
2014	Ghana	Market mill workers (N = 101)	24.8% (≧ 25 dB)	[37]
2015	Nepal	Carpenters/male (N = 88) Median age: 23 years (20-31)	31% (≧ 50 dB)	[38]
		Sawyers/male (N = 36) Median age: 30 years (20-45)	44% (≧ 50 dB)
2016	USA	Mining workers (N = 7398; male: 7895, female: 3) Median age: 38.7 years (18-75)	24% (≧ 40 dB)	[39]
		Oil and gas extraction (N = 1072; male: 977, female: 95) Median age: 36.0 years (16-79)	14% (≧ 40 dB)
2018	USA	AFFH sector (N = 17,290; male: 12,482, female: 4808) Media age: 34.9 years (18-75)	15.0% (≧ 40 dB)	[40]
2018	USA	Construction workers/male (97%)/Caucasian (89%) (total N = 19,127) Mean age = 59.2 years	58% (≧ 40 dB)	[41]
2019	South Thailand	Sawmill workers (N = 699; male: 335, female: 364) Mean age: 33.5 years (± 10.2)	22.8% (≧ 25 dB)	[42]
2019	China	Automotive manufacturing (N = 6667; male: 6427, female: 240)	28.8% (≧ 30 dB)	[43]

AFFH agriculture, forestry, fishing, hunting; IQR interquartile range; OGE oil and gas extraction