Predictive value of Medicare claims data for identifying revision of index hip replacement was modest

Jeffrey N. Katz, Elizabeth A. Wright, John A. Baron, Kelly L. Corbett, Akosua Nti, Henrik Malchau, John Wright, Elena Losina

Research output: Contribution to journalArticle

Abstract

Objective: To determine the positive predictive value of Medicare claims for identifying revision of total hip replacement (THR), a frequent marker of THR quality and outcome. Study Design and Setting: We obtained Medicare Part A (Hospital) claims from seven states on patients that had primary THR from July 1995 through June 1996. We searched claims to determine whether these THR recipients had a subsequent revision THR through December 2006. We selected a sample of subjects with codes indicating both index primary and subsequent revision THR. We obtained medical records for both procedures to establish whether the revision occurred on the same side as index primary THR. Results: Three hundred seventy-four subjects had codes indicating primary THR in 1995-96 and subsequent revision. Seventy-one percent (95% confidence interval: 66, 76) of the revisions were performed on the index joint and would be correctly attributed as revisions of the index THR, using Medicare claims data. Conclusion: Claims data on revision THR that do not contain information on the side that was operated on are ambiguous with respect to whether the revision was performed on the index or contralateral side. Claims-based analyses of revisions after an index THR should acknowledge and adjust for this source of potential misclassification.

Original languageEnglish (US)
Pages (from-to)543-546
Number of pages4
JournalJournal of Clinical Epidemiology
Volume64
Issue number5
DOIs
StatePublished - May 1 2011
Externally publishedYes

Fingerprint

Hip Replacement Arthroplasties
Medicare
Hip
Medicare Part A
Insurance Claim Review
Medical Records
Joints
Confidence Intervals

Keywords

  • Accuracy
  • Administrative data
  • Medicare claims
  • Misclassification
  • Revision
  • Total hip replacement

ASJC Scopus subject areas

  • Epidemiology

Cite this

Predictive value of Medicare claims data for identifying revision of index hip replacement was modest. / Katz, Jeffrey N.; Wright, Elizabeth A.; Baron, John A.; Corbett, Kelly L.; Nti, Akosua; Malchau, Henrik; Wright, John; Losina, Elena.

In: Journal of Clinical Epidemiology, Vol. 64, No. 5, 01.05.2011, p. 543-546.

Research output: Contribution to journalArticle

Katz, Jeffrey N. ; Wright, Elizabeth A. ; Baron, John A. ; Corbett, Kelly L. ; Nti, Akosua ; Malchau, Henrik ; Wright, John ; Losina, Elena. / Predictive value of Medicare claims data for identifying revision of index hip replacement was modest. In: Journal of Clinical Epidemiology. 2011 ; Vol. 64, No. 5. pp. 543-546.
@article{7771a219bfe44ec5b1c33663656a9539,
title = "Predictive value of Medicare claims data for identifying revision of index hip replacement was modest",
abstract = "Objective: To determine the positive predictive value of Medicare claims for identifying revision of total hip replacement (THR), a frequent marker of THR quality and outcome. Study Design and Setting: We obtained Medicare Part A (Hospital) claims from seven states on patients that had primary THR from July 1995 through June 1996. We searched claims to determine whether these THR recipients had a subsequent revision THR through December 2006. We selected a sample of subjects with codes indicating both index primary and subsequent revision THR. We obtained medical records for both procedures to establish whether the revision occurred on the same side as index primary THR. Results: Three hundred seventy-four subjects had codes indicating primary THR in 1995-96 and subsequent revision. Seventy-one percent (95{\%} confidence interval: 66, 76) of the revisions were performed on the index joint and would be correctly attributed as revisions of the index THR, using Medicare claims data. Conclusion: Claims data on revision THR that do not contain information on the side that was operated on are ambiguous with respect to whether the revision was performed on the index or contralateral side. Claims-based analyses of revisions after an index THR should acknowledge and adjust for this source of potential misclassification.",
keywords = "Accuracy, Administrative data, Medicare claims, Misclassification, Revision, Total hip replacement",
author = "Katz, {Jeffrey N.} and Wright, {Elizabeth A.} and Baron, {John A.} and Corbett, {Kelly L.} and Akosua Nti and Henrik Malchau and John Wright and Elena Losina",
year = "2011",
month = "5",
day = "1",
doi = "10.1016/j.jclinepi.2010.05.005",
language = "English (US)",
volume = "64",
pages = "543--546",
journal = "Journal of Clinical Epidemiology",
issn = "0895-4356",
publisher = "Elsevier USA",
number = "5",

}

TY - JOUR

T1 - Predictive value of Medicare claims data for identifying revision of index hip replacement was modest

AU - Katz, Jeffrey N.

AU - Wright, Elizabeth A.

AU - Baron, John A.

AU - Corbett, Kelly L.

AU - Nti, Akosua

AU - Malchau, Henrik

AU - Wright, John

AU - Losina, Elena

PY - 2011/5/1

Y1 - 2011/5/1

N2 - Objective: To determine the positive predictive value of Medicare claims for identifying revision of total hip replacement (THR), a frequent marker of THR quality and outcome. Study Design and Setting: We obtained Medicare Part A (Hospital) claims from seven states on patients that had primary THR from July 1995 through June 1996. We searched claims to determine whether these THR recipients had a subsequent revision THR through December 2006. We selected a sample of subjects with codes indicating both index primary and subsequent revision THR. We obtained medical records for both procedures to establish whether the revision occurred on the same side as index primary THR. Results: Three hundred seventy-four subjects had codes indicating primary THR in 1995-96 and subsequent revision. Seventy-one percent (95% confidence interval: 66, 76) of the revisions were performed on the index joint and would be correctly attributed as revisions of the index THR, using Medicare claims data. Conclusion: Claims data on revision THR that do not contain information on the side that was operated on are ambiguous with respect to whether the revision was performed on the index or contralateral side. Claims-based analyses of revisions after an index THR should acknowledge and adjust for this source of potential misclassification.

AB - Objective: To determine the positive predictive value of Medicare claims for identifying revision of total hip replacement (THR), a frequent marker of THR quality and outcome. Study Design and Setting: We obtained Medicare Part A (Hospital) claims from seven states on patients that had primary THR from July 1995 through June 1996. We searched claims to determine whether these THR recipients had a subsequent revision THR through December 2006. We selected a sample of subjects with codes indicating both index primary and subsequent revision THR. We obtained medical records for both procedures to establish whether the revision occurred on the same side as index primary THR. Results: Three hundred seventy-four subjects had codes indicating primary THR in 1995-96 and subsequent revision. Seventy-one percent (95% confidence interval: 66, 76) of the revisions were performed on the index joint and would be correctly attributed as revisions of the index THR, using Medicare claims data. Conclusion: Claims data on revision THR that do not contain information on the side that was operated on are ambiguous with respect to whether the revision was performed on the index or contralateral side. Claims-based analyses of revisions after an index THR should acknowledge and adjust for this source of potential misclassification.

KW - Accuracy

KW - Administrative data

KW - Medicare claims

KW - Misclassification

KW - Revision

KW - Total hip replacement

UR - http://www.scopus.com/inward/record.url?scp=79953290636&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79953290636&partnerID=8YFLogxK

U2 - 10.1016/j.jclinepi.2010.05.005

DO - 10.1016/j.jclinepi.2010.05.005

M3 - Article

C2 - 20800448

AN - SCOPUS:79953290636

VL - 64

SP - 543

EP - 546

JO - Journal of Clinical Epidemiology

JF - Journal of Clinical Epidemiology

SN - 0895-4356

IS - 5

ER -