Table 1

General characteristics of participants

VariablesNumberPercentage
Gender
 Male22296.9
 Female73.1
Age
 Mean±SD (range)36.29±8.9 (20–58 years)
 20–29 years5624.5
 30–39 years9943.2
 40–49 years4921.4
 50–59 years2510.9
Exposure to flour (duration)
 Mean11.7±7.3 (3–34 years)
 <5 years3113.5
 5–9 years8135.4
 10–14 years5021.8
 15–19 years2711.8
 ≥20 years4017.5
Daily exposure (duration)
 Mean±SD (range)9.21±1.5 (6–12 h)
 ≤8 h10445.4
 >8 h12554.6
Smoking
 Yes5524
 Passive smoking4117.9
 Ex-smoker73.1
 No smoking12655
Symptoms of asthma
 Cough at night5925.8
 Ever wheezing93.9
 Ever wheezing during exercise83.5
Allergic rhinitis
 Yes5624.5
 No17375.5
Work-related allergic rhinitis3515.3
Rhinoconjunctivitis156.6