Table 3 Multivariate analysis of association between occupation groups, respiratory symptoms and respiratory impaired function

 Morning cough

2.94 (1.30, 6.64)^**

2.39 (1.04, 5.48)^*

2.01 (0.92, 4.40)

1.00

 At least 4 days a week

4.87 (2.51, 9.45)^**

4.40 (2.25, 8.58)^*

3.30 (1.67, 6.53)^*

1.00

 Morning phlegm

4.66 (1.70, 12.79)^**

2.51 (0.88, 7.15)

3.52 (1.30, 9.54)^*

1.00

 At least 4 days a week

7.46 (3.41, 16.30)^**

5.23 (2.36, 11.58)^*

3.8 (1.72, 8.74)^*

1.00

 Wheezing > 16 y-old

1.35 (0.46, 3.97)

0.23 (0.60, 0.91)^*

0.40 (0.12, 1.33)

1.00

 Short breath

0.88 (0.38, 2.06)

1.05 (0.45, 2.42)

1.66 (0.79, 3.50)

1.00

 Chest pain

1.49 (0.41,5.42)

–

–

1.00

 Restrictive syndrome

3.13 (1.25, 7.80)^*

1.43 (0.55, 3.75)

3.22 (1.35, 7.69)^*

1.00

 Mixed Syndrome

7.64 (1.83, 31.67)^*

1.85 (0.42, 8.09)

2.61 (0.67, 10.08)

1.00

 Obstructive Syndrome

4.49 (0.70, 28.56)

1.49 (0.23, 9.57)

2.90 (0.56, 14.97)

1.00