Impact of new water systems on healthcare-associated colonization or infection with Pseudomonas aeruginosa.
OBJECTIVE
We aimed to study the impact of new water systems, which were less contaminated with P. aeruginosa, on the incidence of healthcare-associated P. aeruginosa cases (colonizations or infections) in care units that moved to a different building between 2005 and 2014.


METHODS
Generalized Estimated Equations were used to compare the incidence of P. aeruginosa healthcare-associated cases according to the building.


RESULTS
Twenty-nine units moved during the study period and 2,759 cases occurred in these units. No difference was observed when the new building was compared with older buildings overall.


CONCLUSIONS
Our results did not support our hypothesis of a positive association between water system contamination and the incidence of healthcare-associated P. aeruginosa cases. These results must be confirmed by linking results of water samples and patients' data.
Service d'épidémiologie et hygiène hospitalières, CHU Dijon, France; Laboratoire Microbiologie Environnementale et Risques Sanitaires, Dijon, France; Equipe opérationnelle d'hygiène, CHU Reims, Hôpital Maison Blanche, Reims, France.
Annick
A
Lefebvre
Service de Biostatistiques et Information Médicale, CHU Dijon, France; Département d'épidémiologie - EA 4184, Université de Bourgogne, Dijon, France; Inserm UMR 1181 «Biostatistique, Biomathématique, PharmacoEpidémiologie et Maladies Infectieuses», Université de Bourgogne Franche-Comté, Dijon, France.
Catherine
C
Quantin
Service d'Hygiène Hospitalière, Epidémiologie et Prévention, groupe hospitalier Edouard Herriot, Lyon, France; Equipe d'épidémiologie et santé publique, Université Claude Bernard, Lyon, France.
Philippe
P
Vanhems
UHLIN, groupe hospitalier Bichat - Claude Bernard, HUPNVS, AP-HP, Paris, France; Université Paris Diderot, Paris, France.
Jean-Christophe
JC
Lucet
Service d'hygiène, CHU Besançon, France; Laboratoire Chrono-environnement, UMR CNRS 6249, Université de Franche-Comté, Besançon, France.
Xavier
X
Bertrand
Service d'épidémiologie et hygiène hospitalières, CHU Dijon, France.
Karine
K
Astruc
Département de maladies infectieuses, CHU Dijon, France; Laboratoire Microbiologie Environnementale et Risques Sanitaires, Dijon, France.
Pascal
P
Chavanet
Service d'épidémiologie et hygiène hospitalières, CHU Dijon, France.
Ludwig S
LS
Aho-Glélé
Pseudomonas aeruginosa; healthcare-associated infections; infection control; water systems