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Table 3 Greenhouse workers exposure to bioaerosol components, averages and (medians) categorized by serum levels of SAA or CRPa

From: Occupational exposure levels of bioaerosol components are associated with serum levels of the acute phase protein Serum Amyloid A in greenhouse workers

 

n

Endotoxin

 

Dust

 

Bacteria

 

Fungi

 

β-glucan

  

EU/m3

mg/m3

CFU/m3

CFU/m3

Pg/m3

SAA mg/l

      

 1.5–3.0

1

7.8ac

0.12a

1272a

4.1×103a

3.2×103a

 (2.9)b

 3–30

67

184a

0.71a

3.8×104a

2.4×106a

2.0×105a

 (15.5)

(90.3)

(0.39)

(8.7×103)

(4.6×104)

(5.9×104)

 30–180

16

583b

0.75a

2.8×104a

4.8×105a

5.0×105a

 (52.2)

(241)

(0.47)

(9.0×103)

(2.5×104)

(8.6×104)

CRP mg/l

      

 <1

58

156a

0.59a

1.9×104a

4.6×105a

2.0×105a

 (0.51)a

(49.5)

(0.30)

(6.5×103)

(3.1×104)

(4.7×104)

 1.0–3.0

41

270b

0.79a

4.2×104a

3.8×106a

2.4×105a

 (1.7)

(138)

(0.54)

(9.6×103)

(5.6×104)

(8.2×104)

 3.1–12.3

14

361b

0.60a

5.4×104a

3.2×105a

3.6×105a

 (6.2)

(136)

(0.32)

(6.9×103)

(1.8×104)

(8.9×104)

  1. aAverage of measured values Monday morning and Thursday noon within the same week; one SAA in category 2 was only measured on a Thursday, while ten CRP samples were only measured Monday or Thursday.bAverage SAA or CRP level in the category. cNumbers followed by the same letter are not statistically different in an Anova test