Table 2 Logistic regression analysis with adjustment for age due to significant age difference between cases and controls. Odds ratios indicate increased risk associated with a 1 unit change in the natural log of continuous variables

Age (years)

0.968

0.377

0.90–1.04

Gender (Female = 0, Male = 1)

1.083

0.736

0.68–1.72

Body Mass Index (kg/m²)

3.720^a

0.006

1.46–9.45

CRP (mg/L)

1.143^a

0.260

0.91–1.44

IgE (total, kU/L)

1.425^a

0.001

1.20–1.69

White blood cell count (X1,000)

3.008^a

0.01

1.26–7.20

PMN leukocytes

0.899^a

0.836

0.33–2.45

Lymphocytes

0.947^a

0.903

0.39–2.27

Eosinophils

1.520^a

0.01

1.10–2.09

Basophils

0.753^a

0.277

0.45–1.26

Alternaria (quant)^b

1.765 ^a

0.001

1.34–2.32

Alternaria (binary)^c

5.280

0.001

2.47–11.27

Cat dander (quant)

1.702^a

0.001

1.36–2.14

Cat dander (binary)

5.432

0.001

2.86–10.32

Cockroach (quant)

1.612^a

0.001

1.27–2.05

Cockroach (binary)

2.522

0.002

1.41–4.53

Mite (quant)

1.287^a

0.02

1.04–1.59

Mite (binary)

2.751

0.001

1.63–4.66

Dog (quant)

2.360^a

0.001

1.63–3.42

Dog (binary)

6.135

0.001

3.03–12.41

Cumulative sensitivity^d

1.830

0.001

1.49–2.24