title: [Urinary tract infections: Economical impact of water intake].
abstract: BACKGROUND
  This study aims to estimate the impact of preventing urinary tract infections (UTI), using a strategy of increased water intake, from the payer's perspective in the French health care system.
  
  
  METHODS
  A Markov model enables a comparison of health care costs and outcomes for a virtual cohort of subjects with different levels of daily water intake. The analysis of the budgetary impact was based on a period of 5years. The analysis was based on a 25-year follow-up period to assess the effects of adequate water supply on long-term complications.
  
  
  RESULTS
  The authors estimate annual primary incidence of UTI and annual risk of recurrence at 5.3% and 30%, respectively. Risk reduction associated with greater water intake reached 45% and 33% for the general and recurrent populations, respectively. The average total health care cost of a single UTI episode is €1074; for a population of 65 millions, UTI management represents a cost of €3.700 millions for payers. With adequate water intake, the model indicates a potential cost savings of €2.288 millions annually, by preventing 27 million UTI episodes. At the individual level, the potential cost savings is approximately €2915.
  
  
  CONCLUSIONS
  Preventing urinary tract infections using a strategy of adequate water intake could lead to significant cost savings for a public health care system. Further studies are needed to assess the effectiveness of such an approach.
authors.affiliation: Service d'urologie, université François-Rabelais PRES centre Val-de-Loire, CHRU de Tours, 2, boulevard Tonnellé, 37044 Tours, France. Electronic address: F.bruyere@chu-tours.fr.
authors.forename: F
authors.initials: F
authors.lastname: Bruyère
authors.affiliation: Danone Research, RD128, 91767 Palaiseau cedex, France. Electronic address: Inmaculada.BUENDIA@danone.com.
authors.forename: I
authors.initials: I
authors.lastname: Buendia-Jiménez
authors.affiliation: Danone Research, RD128, 91767 Palaiseau cedex, France.
authors.forename: A
authors.initials: A
authors.lastname: Cosnefroy
authors.affiliation: Danone Research, RD128, 91767 Palaiseau cedex, France. Electronic address: irene.lenoir@danone.com.
authors.forename: I
authors.initials: I
authors.lastname: Lenoir-Wijnkoop
authors.affiliation: Inserm U1048, service de physiologie clinique, CHU Rangueil, 31000 Toulouse, France. Electronic address: ivan.tack@gmail.com.
authors.forename: I
authors.initials: I
authors.lastname: Tack
authors.affiliation: Service d'information médicale, hospitaux de Toulouse, 2, rue Viguerie, 31000 Toulouse, France. Electronic address: molinier.l@chu-toulouse.fr.
authors.forename: L
authors.initials: L
authors.lastname: Molinier
authors.affiliation: Service de physiologie clinique, Tenon Hospital, 149, rue de Sèvres, 75743 Paris cedex 15, France. Electronic address: m.daudon@infonie.fr.
authors.forename: M
authors.initials: M
authors.lastname: Daudon
authors.affiliation: Ars Accessus Medica, Dorpsstraat 75, Amsterdam, Pays-Bas. Electronic address: marknuijten@planet.nl.
authors.forename: M J C
authors.initials: MJ
authors.lastname: Nuijten
mesh_terms: D017046:Cost Savings; D004326:Drinking; D005602:France; D006801:Humans; D008390:Markov Chains; D011322:Primary Prevention / Q000191:economics; D014552:Urinary Tract Infections / Q000191:economics* / Q000517:prevention & control*
keywords: Coût; Health cost; Hydratation; Hydration; Infection urinaire; Urinary tract infection