Relationship between Respiratory Tract Complaints, Functional Status, and Smoking in Hairdressers, Auto Painters, and Carpenters

Table 2

Respiratory tract complaints and respiratory function tests according to smoking status.

	Cotinine levels above 500 ng/mL	Cotinine levels below 500 ng/mL	𝑃
Cough	41 (30.4%)	8 (8.9%)	0.000
Phlegm	37 (27.4%)	8 (8.9%)	0.003
Chest tightness	29 (21.5%)	8 (8.9%)	0.009
Dyspnea	14 (10.4%)	11 (12.2%)	0.410
Rhinitis	15 (11.1%)	9 (10.0%)	0.487
FVC	93.6 ± 12.2	94.1 ± 15.0	0.777
FEV1	93.7 ± 13.4	95.7 ± 16.0	0.317
FEV1/FVC	84.9 ± 6.7	87.4 ± 7.6	0.008
MMFR	86.6 ± 24.1	94.2 ± 29.0	0.033