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Table 1 Sociodemographic and workplace characteristics of the studied workers at two steel factories in Egypt, 2021 (n = 606)

From: Prevalence and correlates of occupational noise-induced hearing loss among workers in the steel industry

Characteristic

Frequency (no.)

Percentage (%)

Age (years)

 <30

58

9.6

 30– < 40

334

55.1

 40– < 50

145

23.9

 ≥ 50

69

11.4

Residence

 Rural

150

24.8

 Urban

456

75.2

Highest educational attainment

 Never been to school

12

2.5

 Basic education

48

7.9

 High school

363

59.9

 Higher education

180

29.7

Marital status

 Never married

61

10.1

 Married

527

87.0

 Divorced

18

3.0

Smoking status

 Never been smoker

206

34.0

 Ex-smoker

66

10.9

 Current smoker

334

55.1

Job duration (years)

 < 10

436

71.9

 10– < 20

105

17.3

 ≥ 20

65

10.7

Job nature

 Blue collar

469

77.4

 White collar

127

21.0

 Pink collar

10

1.7

Work schedule

 Daytime work

196

32.3

 Shiftwork

410

67.7

Department

 Production

236

38.9

 Maintenance

82

13.5

 Administrative affairs

65

10.7

 Electricity

37

6.1

 Storage

31

5.1

 Quality

27

4.5

 Facilities

23

3.8

 Othersa

105

17.3

Occupation

 Production technician

124

20.4

 Production supervisor

119

19.6

 Maintenance technician

59

9.7

 Department manager

28

4.6

 Store keeper

24

4.0

 Electric technician

21

3.5

 Engineer

20

3.3

 Oven operator or technician

19

3.1

 Welding technician

19

3.1

 Rolling technician

18

3.0

 Workshop technician

18

3.0

 Administration personnel

18

3.0

 Othersb

119

19.6

  1. aIncluding technical (2.8%), security (2.1%), industrial safety and health (2.0%), fleet (2.0%), deliverables and sales (1.8%), medical care (1.7%), balance (1.5%), purchases (1.3%), hydraulic (1.2%), and mechanics departments (1.0%)
  2. bIncluding quality technician (2.6%), driver (2.6%), accountant (2.1%), crane operator (1.8%), service worker (1.8%), physician/nursing specialist (1.8%), quality specialist (1.5%), security personnel (1.3%), balance operator (1.3%), sales personnel (1.2%), human resources specialist (0.7%), public relationship specialist (0.5%), and lawyer (0.3%)