Table 2.

Prevalence of respiratory symptoms in the last 12 months in examined groups.

Respiratory Symptoms in the Last 12 Months	Dairy Farmers (n = 52)	Office Workers (n = 52)	P-Value*
Any respiratory symptom	19 (36.5%)	12 (23.1%)	0.133
Cough	17 (32.7%)	8 (15.4%)	0.038
Phlegm	10 (19.2%)	3 (5.8%)	0.037
Dyspnea	8 (15.4%)	2 (3.8%)	0.045
Wheezing	6 (11.6%)	4 (7.7%)	0.505
Chest tightness	5 (9.6%)	3 (5.8%)	0.715

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.