Evidence map›Paper›PMID 18332383›Full record

ArticleCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2008

The effect of patients' sex on physicians' recommendations for total knee arthroplasty.

Cornelia M Borkhoff, Gillian A Hawker, Hans J Kreder, Richard H Glazier, Nizar N Mahomed, James G Wright

Open access · goldAbstract read
In one paragraph

Article in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed, 5 pooled it
14.1field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

90 citing papers in PubMed, 5 syntheses or guidelines pooled it, 251 citations in OpenAlex.

  1. Pooled it
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  6. Trial
  7. Do patient race and sex change surgeon recommendations for TKA?Clinical orthopaedics and related research · 2015
    Trial
  8. Gender-Based Differences in Arthroplasty Utilization Across Two Tertiary Academic Centers.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2026
    Article
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  19. Sex-based Differences in Patient Perspectives and Experiences With Shoulder, Hip, and Knee Arthroplasty.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2024
    Article
  20. Article

30 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 5 institutions in 2 countries.

Cornelia M BorkhoffChild Health Evaluative Sciences, Research Institute, The Hospital for Sick Children, Toronto, Ontario.
Gillian A Hawker
Hans J Kreder
Richard H Glazier
Nizar N Mahomed
James G Wright
St. Michael's Hospital · CAHealth Sciences Centre · CAHospital for Sick Children · CASickKids Foundation · CAUniversity Health Network · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe underuse of total joint arthroplasty in appropriate candidates is more than 3 times greater among women than among men. When surveyed, physicians report that the patient's sex has no effect on their decision-making; however, what occurs in clinical practice may be different. The purpose of our study was to determine whether patients' sex affects physicians' decisions to refer a patient for, or to perform, total knee arthroplasty.

methodsSeventy-one physicians (38 family physicians and 33 orthopedic surgeons) in Ontario performed blinded assessments of 2 standardized patients (1 man and 1 woman) with moderate knee osteoarthritis who differed only by sex. The standardized patients recorded the physicians' final recommendations about total knee arthroplasty. Four surgeons did not consent to the inclusion of their data. After detecting an overall main effect, we tested for an interaction with physician type (family physician v. orthopedic surgeon). We used a binary logistic regression analysis with a generalized estimating equation approach to assess the effect of patients' sex on physicians' recommendations for total knee arthroplasty.

resultsIn total, 42% of physicians recommended total knee arthroplasty to the male but not the female standardized patient, and 8% of physicians recommended total knee arthroplasty to the female but not the male standardized patient (odds ratio [OR] 4.2, 95% confidence interval [CI] 2.4-7.3, p < 0.001; risk ratio [RR] 2.1, 95% CI 1.5-2.8, p < 0.001). The odds of an orthopedic surgeon recommending total knee arthroplasty to a male patient was 22 times (95% CI 6.4-76.0, p < 0.001) that for a female patient. The odds of a family physician recommending total knee arthroplasty to a male patient was 2 times (95% CI 1.04-4.71, p = 0.04) that for a female patient.

interpretationPhysicians were more likely to recommend total knee arthroplasty to a male patient than to a female patient, suggesting that gender bias may contribute to the sex-based disparity in the rates of use of total knee arthroplasty.

Indexed as

Decision MakingPatient SelectionArthroplasty, Replacement, KneeAttitude of Health PersonnelConfidence IntervalsFemaleHealth Care SurveysHumansLogistic ModelsMaleOdds RatioOntarioOrthopedicsOsteoarthritis, KneePhysicians, FamilyPractice Patterns, Physicians'

Identifiers

PMID18332383
PMCPMC2263116
OpenAlexW2124463820

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.