title: The association between comorbidity and length of hospital stay and costs in total hip arthroplasty patients: a systematic review.
abstract: We performed a systematic review on the relationship between comorbidity and length of hospital stay (LOS) and hospital costs (HC). Electronic databases were systematically searched for relevant studies, conducting methodological quality assessment and best-evidence synthesis: 317 articles were identified, 10 of which fit the inclusion criteria; nine studies determined the relationship between comorbidity and LOS, with eight reporting a positive correlation; five studies were considered to be of high quality, four of which found a positive correlation; two studies analyzed the relationship between comorbidity and HC and reported significantly higher HC for patients with comorbidities, and were considered to be of high quality. In conclusion, there is limited evidence that patient comorbidity has a positive correlation with LOS and HC.
authors.affiliation: Department of Orthopedics, University Medical Center Groningen, Groningen, the Netherlands.
authors.forename: Marijke
authors.initials: M
authors.lastname: Olthof
authors.affiliation: Department of Orthopedics, University Medical Center Groningen, Groningen, the Netherlands.
authors.forename: Martin
authors.initials: M
authors.lastname: Stevens
authors.affiliation: Department of Orthopedics, University Medical Center Groningen, Groningen, the Netherlands.
authors.forename: Sjoerd K
authors.initials: SK
authors.lastname: Bulstra
authors.affiliation: Department of Orthopedics, University Medical Center Groningen, Groningen, the Netherlands.
authors.forename: Inge
authors.initials: I
authors.lastname: van den Akker-Scheek
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000191:economics*; D015897:Comorbidity; D005260:Female; D006621:Hip Joint / Q000601:surgery*; D017721:Hospital Costs; D006801:Humans; D007592:Joint Diseases / Q000601:surgery*; D007902:Length of Stay / Q000191:economics*; D008297:Male; D008875:Middle Aged
keywords: ASA classification; comorbidity; complexity; length of stay; total hip arthroplasty