Symptoms

Miners N = 104

Controls N = 122

RP [IC 95%]

X²

p

Wheezing

39 (37.5)

9 (7.4)

5.08 [2.58 - 9.99]

30.45

<0.001

Shortness of breath/effort

28 (26.9)

4 (3.3)

8.21 [2.97 - 22.64]

23.91

<0.001

Cough

31 (29.8)

15 (12.3)

2.42 [1.39 - 4.24]

10.62

0.001

Asthma

25 (24)

2 (1.6)

14.66 [3.56 - 60.44]

24.68

<0.001

Rhinitis

21 (20.2)

18 (14.8)

1.37 [0.77 - 2.43]

0.81

0.29

Conjunctivitis

17 (16.3)

12 (9.8)

1.66 [0.83 - 3.31]

2.13

0.16

Eczema

36 (34.6)

3 (2.5)

14.07 [4.46 - 44.38]

38.43

<0.001