Table 5 Factors associated with chronic respiratory symptoms among paper factory workers

Age

18–25

25 (23.4)

41 (41.4)

1.0

1.0

26–34

35 (32.7)

32 (32.3)

1.8 (0.9–3.6)

1.4 (0.6–3.3)

 ≥ 35

47 (43.9)

26 (26.3)

3 (1.5–5.9)*

1.9 (0.8–4.5)

Educational status

1 – 8

25 (23.4)

10 (10.1)

3.5 (1.5–8.0)*

3.8 (1.5–10.0)**

9–12

43 (40.2)

35 (35.4)

1.7 (0.9–3.1)

1.4 (0.8–3.2)

More than 12 years of education

39 (36.4)

54 (54.5)

1.0

1.0

Monthly income

 < 4000

85 (79.4)

67 (67.7)

1.9 (1.0–3.5)

2.5(1.1–5.5)**

 ≥ 4000

22 (20.6)

32 (32.3)

1.0

1.0

Work section

Recycle paper cutting

18 (14.3)

22 (7.7)

8.01 (3. 7–17.5)*

9.5 (1.8–50.8)**

Belling(compactor) and loader

8 (6.3)

3 (1.1)

26.1 (6.4 –106.8)*

46.6 (6.5–353)**

Pulp and recycle paper milling

3 (1.1)

6 (2.1)

4.9 (1.1– 21.2)*

6.4 (0.6–66.2)

Roll paper production

16 (12.7)

7 (2.5)

22.4 (8.2– 61.2)*

43.5 (7.3–257)**

Carton and paper production

49 (38.9)

47 (16.5)

10.2 (5.5- 19)*

16.0 (4.2–61.1)**

Cone production

13 (10.3)

14 (4.9)

9.1 (3.7– 22.1)*

13 (2.6–66.2)**

Water production

19 (15.1)

186 (65.3)

1.0

1.0

Work experience (in year)

 < 5

45 (42.1)

57 (57.6)

1.00

1.00

5–9

25 (23.4)

20 (20.2)

1.6 (0. 8– 3.2)

2.7 (1.2–6.4)**

 ≥ 10

37 (34.6)

22 (22.2)

2.1 (1.1– 4.1)*

3.1 (1.0–9.4)**

Exposure in previous employments

Yes

18 (16.8)

10 (10.1)

1.8 (0.8– 4.1)

1.8 (0.7–4.6)

No

89 (83.2)

89 (89.9)

1.0

1.0

Past history of respiratory illnesses

Yes

31 (29)

6 (6.1)

6.3 (2.5– 16) *

9.3 (3.7–23.8)**

No

76 (71)

93 (93.9)

1.0

1.0