Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link
Volume 17, Number 12—December 2011

Proximity to Goat Farms and Coxiella burnetii Seroprevalence among Pregnant Women

Wim van der HoekComments to Author , Jamie C.E. Meekelenkamp, Frederika Dijkstra, Daan Notermans, Ben Bom, Piet Vellema, Ariene Rietveld, Yvonne T.H.P. van Duynhoven, and Alexander C.A.P. Leenders
Author affiliations: National Institute for Public Health and the Environment, Bilthoven, the Netherlands (W. van der Hoek, F. Dijkstra, D.W. Notermans, B. Bom, Y.T.H.P. van Duynhoven); Jeroen Bosch Hospital, ’s-Hertogenbosch, the Netherlands (J.C.E. Meekelenkamp, A.C.A.P. Leenders); Animal Health Service, Deventer, the Netherlands (P. Vellema); Municipal Health Service “Hart voor Brabant,” ’s-Hertogenbosch (A. Rietveld)

Main Article

Table 2

Multivariate logistic regression models for Coxiella burnetii IgG II seropositivity and serologic indication for possible recent infection based on house location of 2,004 pregnant women, the Netherlands, 2007–2009*

Variable OR (95% CI)
IgG II titer >64 Possible recent infection†
Distance to nearest farm with clinical Q fever, km
<2.0 2.38 (1.19–4.73) 6.68 (2.53–17.64)
2.0–4.9 1.12 (0.74–1.71) 2.82 (1.34–5.92)
>5 Reference Reference
No. infected farms within 5 km
>1 0.92 (0.46–1.85)
0 Reference
Total no. locations with sheep or goats within 5 km
>140 1.29 (0.95–1.76)
<140 Reference
Address density of neighborhood, addresses/km2
<500 1.85 (1.23–2.78) 1.32 (0.65–2.70)
>500 Reference Reference

*OR, odds ratio; CI, confidence interval. Blank cells indicate variable not included.
†IgM antibody titer to phase II antigen >64 combined with either an IgG II or IgM I titer >64.
‡Neighborhoods were categorized as not urban if the address density was <500 addresses/km2 and urban if >500/km2.

Main Article

Page created: November 30, 2011
Page updated: November 30, 2011
Page reviewed: November 30, 2011
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.