Volume 9, Number 2—February 2003
Risk Factors for Sporadic Giardiasis: a Case-Control Study in Southwestern England
|Exposure||Odds ratio (95% CI)a||p value|
|Swallowed water while swimming
||6.2 (2.3 to 16.6)
|Recreational fresh water contact
||5.5 (1.9 to 15.9)
|Each additional glass of tap water consumed per day
||1.3 (1.1 to 1.5)
||2.2 (1.2 to 4.3)
|Ate ice cream||0.4 (0.2 to 0.7)||0.002|
aCI, confidence intervals.
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