Variables

Allergic rhinitis

n (%)

p-value

Reported respiratory diseases related to the occupation

No

Yes

Frequency of the occurrence of respiratory diseases

Seldom

Often

Frequently

Cold

No

Yes

Headaches

No

Yes

Cough

No

Yes

Family history of asthma

No

Yes

Wheezing

No

Yes

Sleep disorders

Never

Less than one night per week

One night or more per week

Asthma attack

No

Yes

Dyspnea of effort

No

Yes

Dry cough at night

No

Yes

62 (76)

19 (24)

25 (31)

13 (16)

43 (53)

4 (5)

77 (95)

26 (32)

55 (68)

46 (57)

35 (43)

51 (63)

30 (37)

69 (85)

12 (15)

49 (60)

19 (24)

13 (16)

10 (12)

71(88)

67 (83)

14 (17)

50 (62)

31 (38)

<0.001***

0.18

0.001**

0.17

0.001**

0.55

0.23

0.01*

0.05

0.10

<0.001***