Observational studyBMJ open2016
Hospital case volume and outcomes for proximal femoral fractures in the USA: an observational study.
Observational study in BMJ open, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled 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.
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.
Who cites it
17 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- The volume-outcome relationship for hip fractures: a systematic review and meta-analysis of 2,023,469 patients.Acta orthopaedica · 2019Pooled it
- Intramedullary versus extramedullary internal fixation for unstable intertrochanteric fracture, a meta-analysis.Acta orthopaedica et traumatologica turcica · 2018Pooled it
- Time to surgery after proximal femur fracture in geriatric patients depends on hospital size and provided level of care: analysis of the Registry for Geriatric Trauma (ATR-DGU).European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2023Article
- Predictors of mortality for patients with hip fracture: a study of the nationwide 1-year records of 24,950 fractures in Romania.Archives of osteoporosis · 2023Article
- The Effect of Surgeon and Hospital Volume on Morbidity and Mortality After Femoral Shaft Fractures.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2023Article
- Volume-Outcome Relationship in Cancer Survival Rates: Analysis of a Regional Population-Based Cancer Registry in Japan.Healthcare (Basel, Switzerland) · 2022Article
- Short-term outcome of isolated lateral malleolar fracture treatment is independent of hospital trauma volume or teaching status: a nationwide retrospective cohort study.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2022Article
- Variations in hip fracture inpatient care in Japan, Korea, and Taiwan: an analysis of health administrative data.BMC health services research · 2021Article
- Trends and Outcomes of Hip Fracture Hospitalization Among Medicare Beneficiaries with Inflammatory Bowel Disease, 2000-2017.Digestive diseases and sciences · 2021Article
- Intramedullary Nail Breakage and Mechanical Displacement in Patients with Proximal Femoral Fractures: A Commercial and Medicare Supplemental Claims Database Analysis.Medical devices (Auckland, N.Z.) · 2021Article
- The effects of cement fixation on survival in elderly patients with hip hemiarthroplasty: a nationwide cohort study.BMC musculoskeletal disorders · 2019Article
- Data resource profile: State Inpatient Databases.International journal of epidemiology · 2019Article
- Transfer status in geriatric hip fracture surgery - An independent risk factor associated with 30-day mortality, re-operations and complications.Journal of clinical orthopaedics and trauma · 2019Article
- [Analysis of 2000 surgically treated proximal femoral fractures : Multiple variables influence mortality].Der Unfallchirurg · 2018Article
- Observational
- Incidence of osteosynthesis of members in France.International orthopaedics · 2017Article
- Role of Local Infiltration of Tranexamic Acid in Reducing Blood Loss in Peritrochanteric Fracture Surgery in the Elderly Population.Malaysian orthopaedic journal · 2016Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
Abstract
objectiveTo explore whether older adults with isolated hip fractures benefit from treatment in high-volume hospitals.
designPopulation-based observational study.
settingAll acute hospitals in California, USA.
participantsAll individuals aged ≥65 that underwent an operation for an isolated hip fracture in California between 2007 and 2011. Patients transferred between hospitals were excluded. PRIMARY AND SECONDARY OUTCOMES: Quality indicators (time to surgery) and patient outcomes (length of stay, in-hospital mortality, unplanned 30-day readmission, and selected complications).
results91,401 individuals satisfied the inclusion criteria. Time to operation and length of stay were significantly prolonged in low-volume hospitals, by 1.96 (95% CI 1.20 to 2.73) and 0.70 (0.38 to 1.03) days, respectively. However, there were no differences in clinical outcomes, including in-hospital mortality, 30-day re-admission, and rates of pneumonia, pressure ulcers, and venous thromboembolism.
conclusionsThese data suggest that there is no patient safety imperative to limit hip fracture care to high-volume hospitals.
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Registered trials
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.