Evidence map›Paper›PMID 22012180›Full record

ArticleBMJ (Clinical research ed.)2011

Outcomes of elective surgery undertaken in independent sector treatment centres and NHS providers in England: audit of patient outcomes in surgery.

J Chard, M Kuczawski, N Black, J van der Meulen, POiS Audit Steering Committee

Open access · hybridAbstract readComparative Study
In one paragraph

Article in BMJ (Clinical research ed.), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 2 pooled it
8.8field-weighted citation impact, top 2% 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

39 citing papers in PubMed, 2 syntheses or guidelines pooled it, 89 citations in OpenAlex.

  1. Pooled it
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  3. Observational
  4. Determinants of quality in the independent and public hospital sectors in England.International journal for quality in health care : journal of the International Society for Quality in Health Care · 2025
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  10. Patient preferences and choices as a reflection of trust-A cluster analysis comparing postsurgical perceptions in a private and a public hospital.Health expectations : an international journal of public participation in health care and health policy · 2022
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

J ChardClinical Effectiveness Unit, Royal College of Surgeons of England, London WC2A 3PE, UK.
M Kuczawski
N Black
J van der Meulen
POiS Audit Steering Committee
London School of Hygiene & Tropical Medicine · GBRoyal College of Surgeons of England · GB

Funding

Department of Health
6 · The paper itself

Abstract

objectiveTo compare characteristics of patients and outcomes after elective surgery in independent sector treatment centres (ISTCs) and NHS providers.

designFollow-up study with outcomes reported by patients three to six months after surgery.

setting25 ISTCs and 72 NHS providers in England. Population Consecutive patients undergoing hip or knee replacement (5671 in ISTCs and 14,292 in NHS), inguinal hernia repair (640 and 2023, respectively), or surgery for varicose veins (248 and 1336, respectively). MAIN OUTCOMES: Symptoms and disability reported by patients (Oxford hip and knee scores on a 48 point scale; Aberdeen varicose vein questionnaire) and quality of life (EuroQol EQ-5D score).

resultsPatients in ISTCs were healthier than those in NHS providers, had less severe preoperative symptoms, and were more affluent, though the differences were small. With adjustment, patients undergoing joint replacements in NHS providers had poorer outcomes: difference of -1.7 (95% confidence interval -2.5 to -0.9) on the Oxford hip score and -0.9 (-1.6 to -0.2) on the Oxford knee score. They more often reported complications: odds ratio 1.3 (95% confidence interval 1.1 to 1.5) for hip and 1.4 (1.2 to 1.6) for knee. There were no significant differences in outcomes after surgery for hernia or varicose veins, except that NHS patients more often reported poor results after hernia repair (1.4, 1.0 to 1.9) and additional surgery after varicose vein surgery (2.8, 1.2 to 6.8).

conclusionPatients undergoing surgery in ISTCs were slightly healthier and had less severe conditions than those undergoing surgery in NHS providers. Some outcomes were better in ISTCs, but differences were small compared with the impact ISTCs could have on the provision of elective services.

Indexed as

Medical AuditOutcome Assessment, Health CareArthroplasty, Replacement, HipArthroplasty, Replacement, KneeElective Surgical ProceduresEnglandFollow-Up StudiesHealth Facilities, ProprietaryHealth StatusHerniorrhaphyHumansPostoperative ComplicationsQuality of LifeState MedicineTreatment OutcomeVaricose Veins

Identifiers

PMID22012180
PMCPMC3198262
OpenAlexW2031436518

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.