Chapter 2 62 Results In total, 180 employees were interested to participate in the study of which eight did not respond on the study information and 29 could not be included because they were aged below 40. This resulted in a study population of 143 employees. Table 1 shows their demographics. The majority (75%) of the study population was male, mean age was 53, and their educational level varied from primary school to university. Most employees (89%) reported their health condition to be very good or good, and the others reported their health condition to be fair (10%) or bad (1%). Most employees (65%) used hearing protection at work. Only a few employees (4) were hearing aid users. The outcome of the hearing screening was pass for 89% of the employees and fail for the other 11%. Table 1. Demographic characteristics of the study population (N = 143) Category N % Gender Male 107 74.8 Female 36 25.2 Age 40-50 50 35 50-60 73 51 >60 20 14 Educational level Primary school 4 2.8 Lower vocational 10 7.0 General intermediate 9 6.3 Vocational Education and Training 48 33.6 General secondary 8 5.6 Higher vocational 45 31.5 University 19 13.3 Perceived health status Very good 25 17.5 Good 103 72.0 Fair 14 9.8 Bad 1 0.7 Hearing protection Yes 93 65.0 No 50 35.0 Hearing aids Yes 4 2.8 No 138 97.2
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