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Volume 10, Number 3—March 2004
Research

Legionella Infection Risk from Domestic Hot Water

Paola Borella*Comments to Author , M. Teresa Montagna†, Vincenzo Romano-Spica‡§, Serena Stampi¶, Giovanna Stancanelli#, Maria Triassi**, Rachele Neglia*, Isabella Marchesi*, Guglielmina Fantuzzi*, Daniela Tatò†, Christian Napoli†, Gianluigi Quaranta‡, Patrizia Laurenti‡, Erica Leoni¶, Giovanna De Luca§, Cristina Ossi#, Matteo Moro#, and Gabriella Ribera D’Alcalà**
Author affiliations: *University of Modena and Reggio E., Modena, Italy; †University of Bari, Bari, Italy; ‡Catholic University in Rome, Rome, Italy; §University Institute of Physics Sciences, Rome, Italy,; ¶University of Bologna, Bologna, Italy; #S. Raffaele Hospital, Milan, Italy; **University Federico II of Naples, Naples, Italy

Main Article

Table 6

Multiple logistic regression of system and water characteristics associated with Legionella contaminationa

Variable Legionella spp. yes/no
OR (95% CI)
Central heater
 4.88 (1.61 to 14.76)b
Distribution site distance >10 m
 4.55 (1.55 to 13.33)c
Zn <100 μg/L
 0.22 (0.07 to 0.66)c
Heating system age >10 yr
 3.68 (1.25 to 10.82)d
Cu >50 μg/L 0.08 (0.01 to 0.97)d

aOR, odds ratio; CI, confidence interval.
bp < 0.005.
cp < 0.01.
dp < 0.05.

Main Article

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