Evidence map›Paper›PMID 26465124›Full record

ArticleMedical care2015

Variation in Patient-reported Outcomes Across Hospitals Following Surgery.

Jennifer F Waljee, Amir Ghaferi, Jonathan F Finks, Ruth Cassidy, Oliver Varban, Arthur Carlin, Noelle Carlozzi, Justin Dimick

Abstract read
In one paragraph

Article in Medical care, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–field-weighted citation impact
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

10 citing papers in PubMed.

  1. Trial
  2. Assessing the real-world value of hemophilia care: how suitable are patient-centered outcomes for hospital-level comparisons?International journal for quality in health care : journal of the International Society for Quality in Health Care · 2026
    Article
  3. Article
  4. Article
  5. Observational
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  7. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Jennifer F Waljee*Department of Surgery, Center for Health Outcomes and Policy †Michigan Bariatric Surgery Collaborative, Center for Health Outcomes and Policy, University of Michigan, Ann Arbor ‡Department of Surgery, Division of General Surgery, Henry Ford Health System, Wayne State University School of Medicine, Detroit §Department of Physical Medicine & Rehabilitation, Center for Clinical Outcomes Development and Application, University of Michigan, Ann Arbor, MI.
Amir Ghaferi
Jonathan F Finks
Ruth Cassidy
Oliver Varban
Arthur Carlin
Noelle Carlozzi
Justin Dimick

Funding

Patient-Reported Outcomes and Quality Assessment in SurgeryK08HS023313 · AHRQ · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI WALJEE, JENNIFER FILIP · 2014 to 2017
$591k
AHRQ HHS 1K08HS023313-01AHRQ HHS K08 HS023313
6 · The paper itself

Abstract

backgroundAlthough there is growing interest in applying patient-reported outcomes (PROs) toward surgical quality, the extent to which PROs vary across hospitals following surgical procedures is unknown.

objectivesWe examined variation in PROs, specifically health-related quality of life (HRQOL), across hospitals performing bariatric surgery. RESEARCH

designA retrospective cohort study. SUBJECTS: The Michigan Bariatric Surgery Collaborative is a statewide consortium of 39 hospitals performing laparoscopic gastric bypass, gastric banding, or sleeve gastrectomy (n=11,420 patients between 2008 and 2012). MEASURES: We examined generic and disease-specific HRQOL measured by the Health and Activities Limitations Index (HALex) and Bariatric Quality of Life index (BQL) preoperatively and at 1 year. We measured the variation in postoperative HRQOL across hospitals, and the effect of risk and reliability adjustment on hospital ranking.

resultsIn this cohort, HRQOL varied by 56% (HALex) and 37% (BQL) across hospitals. Patient factors accounted for 58% (HALex) to 71% (BQL) of the variation in HRQOL across hospitals. After risk and reliability adjustment, HRQOL varied by 18% (by HALex) and 14.5% (by BQL) across hospitals, and the proportion of patients who experienced a large improvement in HRQOL by HALex ranged from 33% to 69% and 67% to 92% by BQL. After adjusting for patient factors and reliability, these differences diminished to 55%-64% (HALex) and 79%-84% (BQL).

conclusionsPatient factors explain a large proportion of hospital-level variation in PROs following bariatric surgery, underscoring the importance of risk adjustment. However, some variation in PROs across hospitals remains unexplained, suggesting PROs may represent a viable indicator of hospital performance.

Indexed as

Outcome and Process Assessment, Health CareBariatric SurgeryCohort StudiesFactor Analysis, StatisticalHumansMichiganObesity, MorbidPatient SatisfactionPostoperative ComplicationsQuality of LifeRetrospective StudiesSurveys and QuestionnairesTreatment Outcome

Identifiers

PMID26465124
PMCPMC9621341

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Registered trials

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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.