title: [Functional dependency evaluation of hemodialysis patients: a multicentric study].
abstract: BACKGROUND
  There has been a change in the hemodialysis population characteristics over the last years with a progressive increase in patient,s age and associated comorbility and mortality. This older hemodialysis population are more functionally and medically dependent increasing the time taken to perform nursing work. The objective of this study was to evaluate the degree of functional dependency on hemodialysis patients and the need of care by nursing workload.
  
  
  METHODS
  A transversal descriptive study was done during 1 month (april 2005) on 586 patients from 10 HD Units in Spain. No exclusion criteria were used. The Delta Test, who was used to evaluate the patients dependency needs, is a workload measure instrument base on three subscales: dependency, Physical Deficiency and mental deficiency. The indicators are measure on a scale of one to three with each level representing an increasing demand on nursing time. The results obtained from the Delta Test were analyzed taking into account the following variables: age, average time in dialysis, Charlson comorbidity Index, geographic location and HD unit.
  
  
  RESULTS
  46% of the patients show some degree of dependency, of these 12.8% were moderated and 8.1% severe; the subscale analysis showed that 19.6% and 6.7% had, respectively, a moderate to severe physical and mental health deficiency. The dependency degree varied significantly between HD Units and geographic location with a range of 0% to 59.8%. The degree of dependency were statistically associated with age and CCI. The higher CCI (r: 0,21; p < 0.001) and age (r: 0,26; p < 0.001) the higher was the Delta Test Score for dependency level. Patients times of initiation on dialysis were not associated with an increase in the degree of dependency. The aspects evaluated by the Delta Test that showed a higher score were those related to patients mobility. The patients assistance requirements during the HD session are basically related to a lack of mobility due to musculoskeletal disease and to a lesser extent to behavior alterations.
  
  
  CONCLUSIONS
  HD units are attending patients with an important degree of dependency which impose and added workload to the healthcare personnel. In occasions, it is very difficult to attend and give proper care with the current legally established nurse to patient ratio which. This suggests the need to implement a better staffing policy. The Delta Test provides an objective, adaptable and standardized instrument for measuring degree of dependency of HD patients.
authors.affiliation: Servicio de Nefrología, Hemodiálisis, Hospital Perpetuo Socorro, Alicanta, Elche, Elda. lola@olemiswebs.com
authors.forename: M D
authors.initials: MD
authors.lastname: Arenas
authors.forename: F
authors.initials: F
authors.lastname: Alvarez-Ude
authors.forename: M
authors.initials: M
authors.lastname: Angoso
authors.forename: I
authors.initials: I
authors.lastname: Berdud
authors.forename: A
authors.initials: A
authors.lastname: Antolín
authors.forename: J
authors.initials: J
authors.lastname: Lacueva
authors.forename: S
authors.initials: S
authors.lastname: García Marcos
authors.forename: A
authors.initials: A
authors.lastname: Fernández
authors.forename: M T
authors.initials: MT
authors.lastname: Gil
authors.forename: A
authors.initials: A
authors.lastname: Soriano
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D015897:Comorbidity; D006801:Humans; D006435:Renal Dialysis / Q000451:nursing; D013030:Spain; D016526:Workload