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Volume 20, Number 3—March 2014

Coxiella burnetii Seroprevalence and Risk for Humans on Dairy Cattle Farms, the Netherlands, 2010–2011

B. Schimmer1Comments to Author , N. Schotten1, E. van Engelen, J.L.A. Hautvast, P.M. Schneeberger, and Y.T.H.P. van Duijnhoven
Author affiliations: National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands (B. Schimmer, N. Schotten, Y.T.H.P. van Duynhoven); Animal Health Service, Deventer, the Netherlands (E. van Engelen); Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands (J.L.A. Hautvast); Jeroen Bosch Hospital, ‘s-Hertogenbosch, the Netherlands (P.M. Schneeberger)

Main Article

Table 5

Multivariate logistic regression analysis of participant-based characteristics associated with Coxiella burnetii positivity among dairy cattle farm residents, the Netherlands, September 2010–March 2011*

Association with positivity, characteristic OR (95% CI)
Positive association
Age, y
<35 Reference
35–44 1.4 (0.8–2.3)
45–54 1.0 (0.6–1.6)
>55 1.9 (1.0–3.5)
Work on farm
No Reference
Part time (1–39 h/wk) 2.4 (1.1–5.2)
Full time (>40 h/wk) 10.4 (4.2–25.7)
Contact with pigs at own or other farm
Yes 2.6 (1.2–5.4)
No   Reference
Contact with cows at other farm
Yes 1.6 (1.0–2.6)
No Reference
Indirect contact with rats/mice at own farm
Yes 1.5 (1.0–2.4)
Negative association
Use of gloves during cattle birth care
Fully compliant 0.4 (0.2–0.8)
Partly or noncompliant Reference
No birth care 0.7 (0.4–1.1)
Contact with poultry at own farm
Yes 0.6 (0.4–0.9)
No Reference
Contact with compost
Yes 0.6 (0.3–0.9)
No Reference

*The analysis included the primary participant-based characteristics associated with positivity (p<0.10 in likelihood ratio test). The number of observations was 712. Model fit was assessed by use of the Hosmer–Lemeshow goodness-of-fit test (p = 0.91). OR, odds ratio.

Main Article

1These authors contributed equally to this article.

Page created: February 19, 2014
Page updated: February 19, 2014
Page reviewed: February 19, 2014
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