NDLI: Mortality following hip arthroplasty--inappropriate use of National Joint Registry (NJR) data.

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Mortality following hip arthroplasty--inappropriate use of National Joint Registry (NJR) data.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Whitehouse, Sarah L. Bolland, Benjamin J. R. F. Howell, Jonathan R. Crawford, Ross W. Timperley, A. John
Description	Country affiliation: Australia Author Affiliation: Whitehouse SL ( Orthopaedic Research Unit, Institute of Health and Biomedical Innovation, Queensland University of Technology, The Prince Charles Hospital, Chermside, Queensland, Australia.); Bolland BJ ( Exeter Hip Unit, Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter Hospital Exeter, Devon, UK.); Howell JR ( Exeter Hip Unit, Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter Hospital Exeter, Devon, UK.); Crawford RW ( Orthopaedic Research Unit, Institute of Health and Biomedical Innovation, Queensland University of Technology, The Prince Charles Hospital, Chermside, Queensland, Australia.); Timperley AJ ( Exeter Hip Unit, Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter Hospital Exeter, Devon, UK.)
Abstract	Mortality following hip arthroplasty is affected by a large number of confounding variables each of which must be considered to enable valid interpretation. Relevant variables available from the 2011 NJR data set were included in the Cox model. Mortality rates in hip arthroplasty patients were lower than in the age-matched population across all hip types. Age at surgery, ASA grade, diagnosis, gender, provider type, hip type and lead surgeon grade all had a significant effect on mortality. Schemper's statistic showed that only 18.98% of the variation in mortality was explained by the variables available in the NJR data set. It is inappropriate to use NJR data to study an outcome affected by a multitude of confounding variables when these cannot be adequately accounted for in the available data set.
File Format	HTM / HTML
ISSN	08835403
Issue Number	9
Volume Number	29
e-ISSN	15328406
Journal	The Journal of Arthroplasty
Language	English
Publisher	Elsevier
Publisher Date	2014-09-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Orthopedics Arthroplasty, Replacement, Hip Mortality Osteoarthritis, Hip Surgery Registries Statistics & Numerical Data Standards Aged Aged, 80 And Over Bone Cements Therapeutic Use Confounding Factors (epidemiology) Female Hip Injuries Humans Male Middle Aged Osteotomy Proportional Hazards Models Reoperation Risk Factors Great Britain Epidemiology Journal Article
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine

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