Volume 12, Number 4—April 2006
Reducing Legionella Colonization of Water Systems with Monochloramine
|Factor||No. samples||% Legionella colonization||Adjusted prevalence ratio (95% CI)*||p value|
|Water heater colonized with Legionella spp.|
|Temperature of water at point-of-use outlet, °C|
|Building height (stories)|
|Disruption in service in last 3 mo|
*Prevalence ratios and 95% confidence intervals (CIs) were adjusted for repeated sampling and correlations between samples taken from the same building and for the effects of all other variables. Twenty-eight observations were missing.
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