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Volume 9, Number 2—February 2003
Research

Risk Factors for Sporadic Giardiasis: a Case-Control Study in Southwestern England

James M. Stuart*Comments to Author , Hilary J. Orr*, Fiona G Warburton†, Sugarthinny Jeyakanth†, Carolyn Pugh‡, Ian Morris‡, Joyshri Sarangi§, and Gordon Nichols¶
Author affiliations: *PHLS Communicable Disease Surveillance Centre (Southwest), Gloucester, U.K.; †PHLS Statistics Unit, London, U.K.; ‡Public Health Laboratory, Bristol, U.K.; §Avon Health Authority, Bristol, U.K.; ¶PHLS Communicable Disease Surveillance Centre, London, U.K.

Main Article

Table 3

Multivariable analysis of risk factors for giardiasis

Exposure Odds ratio
(95% CI)a p value
Swallowed water while swimming
 6.2 (2.3 to 16.6)
 <0.0001
Recreational fresh water contact
 5.5 (1.9 to 15.9)
 0.001
Each additional glass of tap water consumed per day
 1.3 (1.1 to 1.5)
 <0.0001
Ate lettuce
 2.2 (1.2 to 4.3)
 0.01
Ate ice cream 0.4 (0.2 to 0.7) 0.002

aCI, confidence intervals.

Main Article

Page created: June 08, 2011
Page updated: June 08, 2011
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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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