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Volume 20, Number 10—October 2014
CME ACTIVITY - Research

Risk Factors for Human Lice and Bartonellosis among the Homeless, San Francisco, California, USA

Denise L. BonillaComments to Author , Charsey Cole-Porse, Anne Kjemtrup, Lynn M. Osikowicz, and Michael Y. Kosoy
Author affiliations: California Department of Public Health, Richmond, California, USA (D.L. Bonilla); California Department of Public Health, Sacramento, California (C. Cole-Porse, A. Kjemtrup); Centers for Disease Control and Prevention, Fort Collins, Colorado, USA (L. Osikowicz, M. Kosoy)

Main Article

Table 2

Results of logistic regression for the association of body louse infestation with certain explanatory variables in a homeless population surveyed during 2008–2010 and 2012, San Francisco, California, USA

Coefficient Estimated values SE p value Odds ratio 95% CI
Intercept −3.82 0.73 <0.01 Reference*
Sleeping outdoors 0.98 0.37 0.01 2.66 1.29–5.59
African American† 1.03 0.40 0.01 2.81 1.30–6.23
Male 1.73 0.52 0.00 5.64 2.19–17.57
Reason for requesting services, lice‡ 1.22 0.60 0.04 3.39 1.09–1.21

*Reference group is female, who sleep indoors, of ethnic self-reported background other than African American, and who requested services for reasons other than body lice.
†All other races/ethnicities combined (white, Hispanic, native American, and Asian) was used as the reference group for this variable on the basis of the results of the univariate analysis
‡All other reasons for requesting services (bugs, itch, and services, such as t-shirts) was used as the reference group for this variable on the basis of the results of the univariate analysis

Main Article

Page created: September 10, 2014
Page updated: September 10, 2014
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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.
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