Table 2.

Prevalence of respiratory symptoms in the last 12 months

Respiratory symptoms in the last 12 months	Parquet manufacturers (n = 37)	Office workers (n = 37)	P-value*
Overall respiratory symptoms	16 (43.2%)	9 (24.3%)	0.092
Cough	11 (29.7%)	5 (13.5%)	0.044
Phlegm	6 (16.2%)	2 (5.4%)	0.021
Dyspnea	4 (10.8%)	3 (8.1%)	0.119
Wheezing	3 (8.1%)	2 (5.4%)	0.143
Chest tightness	5 (13.5%)	4 (10.8%)	0.138

Data are expressed as number and percentage of study subjects with certain variable.

^*Tested by Chi-square test (or Fisher’s exact test where appropriate).