title: [The hospital stay as a modifier of the effect of other risk factors for hospital infection].
abstract: It has been suggested that the risk of hospital infection differs according to the moment of hospital stay. Through a retrospective cohort of 843 surgery patients the effect of several factors on nosocomial infection risk is studied as a function of the duration of the hospital stay. It was observed that the studied variables (operation, type of surgery, age and severity of underlying disease) had a predisposing effect on the appearance of infection in short stays (less than 14 days), being the effect greater in longer stays. It is concluded that hospital stay can act as a modifier of the effect of several factors on the risk of hospital infection.
authors.affiliation: Servicios de Medicina Preventiva del Hospital Universitario, Granada.
authors.forename: M
authors.initials: M
authors.lastname: Delgado Rodríguez
authors.forename: P
authors.initials: P
authors.lastname: Lardelli Claret
authors.forename: R
authors.initials: R
authors.lastname: López Gigosos
authors.forename: A
authors.initials: A
authors.lastname: Cordero Moreno
authors.forename: R
authors.initials: R
authors.lastname: Rodríguez-Contreras Pelayo
authors.forename: R
authors.initials: R
authors.lastname: Gálvez Vargas
mesh_terms: D003428:Cross Infection / Q000453:epidemiology*; D006801:Humans; D007902:Length of Stay / Q000706:statistics & numerical data*; D012189:Retrospective Studies; D012307:Risk Factors; D013030:Spain / Q000453:epidemiology; D013503:Surgery Department, Hospital / Q000706:statistics & numerical data; D013997:Time Factors
vernacular_title: La estancia como modificador del efecto de otros factores de riesgo para la infección hospitalaria.