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.