Table 4

Multiple logistic regression models with work-related respiratory symptoms as dependent variables and daily hours in animal houses as independent parameter. Adjusted for country, age, sex and smoking habits

Duration of work in confinement houses per day h
Cattle barnPig housePoultry house
Median3.502.001.00
IQR2.0–6.01.0–4.00.5–1.0
Range0.2–10.00.15–10.00.1–8.0
OR (95% CI)
Shortness of breath
Not working inside111
1–250.94 (0.69–1.28)0.81 (0.45–1.43)0.57 (0.29–1.11)
26–501.16 (0.83–1.63)0.82 (0.53–1.27)0.81 (0.46–1.43)
51–750.73 (0.53–0.99)1.61 (1.10–2.35)-
76–1000.88 (0.57–1.34)1.71 (1.11–2.63)2.01 (0.92–4.37)
Cough without phlegm
Not working inside111
1–250.94 (0.73–1.22)1.39 (0.93–2.08)0.60 (0.34–1.04)
26–500.80 (0.60–1.07)1.19 (0.84–1.67)0.92 (0.60–1.39)
51–750.84 (0.66–1.07)1.71 (1.22–2.39)-
76–1000.85 (0.61–1.20)2.06 (1.44–2.96)0.95 (0.43–2.07)
Cough with phlegm
Not working inside111
1–251.31 (0.99–1.74)0.90 (0.57–1.44)0.45 (0.23–0.91)
26–501.34 (0.98–1.84)1.01 (0.71–1.44)0.89 (0.56–1.42)
51–751.10 (0.85–1.42)1.98 (1.42–2.75)-
76–1001.33 (0.96–1.84)1.67 (1.14–2.45)1.13 (0.52–2.49)
Wheezing
Not working inside111
1–250.85 (0.60–1.19)0.77 (0.42–1.42)0.80 (0.38–1.68)
26–500.86 (0.58–1.27)0.98 (0.64–1.51)0.87 (0.48–1.57)
51–750.85 (0.63–1.16)1.48 (0.99–2.20)-
76–1001.01 (0.68–1.51)1.24 (0.78–1.97)2.34 (1.11–4.90)
Nasal irritation
Not working inside111
1–250.93 (0.74–1.18)0.98 (0.68–1.41)1.07 (0.71–1.62)
26–501.26 (0.98–1.62)1.32 (0.99–1.76)0.99 (0.68–1.43)
51–750.88 (0.71–1.09)1.49 (1.10–2.02)-
76–1001.28 (0.97–1.67)1.41 (1.02–1.96)2.20 (1.21–4.00)
Flu-like illness
Not working inside111
1–250.99 (0.74–1.32)0.81 (0.53–1.24)0.83 (0.46–1.50)
26–501.22 (0.89–1.68)1.36 (0.99–1.87)1.35 (0.90–2.04)
51–751.10 (0.87–1.38)1.57 (1.12–2.19)-
76–1001.79 (1.35–2.36)1.89 (1.34–2.67)1.15 (0.59–2.26)
  • IQR: interquartile range; 1–25: 1st–25th percentile; 26–50: 26th–50th percentile; 51–75: 51st–75th percentile; 76–100: 76th–100th percentile.