Table 3 Work profile, occupational history, and consumption of different addictive components by brick kiln workers.

From: Detection of reproductive and hematobiochemical biomarkers to evaluate the impact of heavy metal exposure on brick kiln workers

Work history

   

Parameters

Control

 

Workers

Income (PKR, USD, EURO)

n

Percentage

N

Percentage

  < 10,000; < 35.70; < 32.98

0

0

19

6.3

 10,000–15,000; 35–53; 32–49

19

9.5

231

77

 16,000–20,000; 57–71; 68

60

30

47

15.7

 21,000–25,000; 74–89; 69- 82

51

25.5

3

1

 26,000–30,000; 92–107; 85–98

21

10.5

0

0

 31,000–35,000; 110–124; 102–115

49

24.5

0

0

Work type

 Molder

0

0

173

57.7

 Carrier

0

0

71

23.7

 Bakers

0

0

48

16

 Munshi (Contractor)

0

0

8

2.6

 Job

200

100

0

0

Year of living in the vicinity

 1–10

5

2.5

0

0

 11–20

8

4

15

5

 21–30

54

27

96

32

 31–40

47

23.5

84

28

 41–50

21

10.5

56

18.7

 51–60

51

25.5

29

9.7

 60 + 

14

7

20

6.6

Work duration (years)

 1–10

NA

NA

111

37

 11–20

NA

NA

119

39.7

 21–30

NA

NA

47

15.7

 31–40

NA

NA

19

6.3

 41–50

NA

NA

4

1.3

Exposure time (hours/day)

 1–4

NA

NA

3

1

 5–8

NA

NA

152

50.7

 9–12

NA

NA

141

47

 13–18

NA

NA

4

1.3

Exposure material

 Smoke, Smog, Dust

NA

NA

173

57.6

 Smoke, Smog, Dust, Fuel

NA

NA

127

42.4

Personal protective equipment

 Gloves

NA

NA

0

0

 Mask

NA

NA

0

0

 Head covers

NA

NA

0

0

 Respirators

NA

NA

0

0

Smoking status of brick kiln workers

Addiction

 Yes

50

25

161

53.7

 No

150

75

139

46.3

Addiction types

Cigarette

38

19

49

16.4

 Naswar (Smokeless tobacco product)

7

3.5

83

27.7

 Hookah (Tobacco along the Water pipe)

5

2.5

27

9.3

 Opium (Pellets)

0

0

2

0.6

Age at starting addiction(years)

  < 10

0

0

3

1

 10–20

21

10.5

103

34.3

 21–30

24

12

50

16.7

 31–40

5

2.5

5

1.7

Age at starting addiction (average ± SEM)

23.08 ± 0.8

 

19.87 ± 0.4

 

Daily intake

Cigarette (number)

 1–10

24

12

37

12.4

 10–20

11

5.5

10

3.4

 20 + 

3

1.5

2

0.6

Naswar (Smokeless tobacco product; packets)

 1/4th

1

0.5

16

5.4

 Half

2

1

33

11

 1

4

2

34

11.3

Hookah (Tobacco pipe; Water pipe)

 1–5 times

1

0.5

8

2.7

 6–10 times

4

2

19

6.3

Opium (pellets)

 1–2

0

0

2

0.6