ArticleBMJ open2016
Weekend versus weekday transplant surgery and outcomes after kidney transplantation in the USA: a retrospective national database analysis.
Article in BMJ open, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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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.
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Who cites it
16 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.
- Pooled it
- Timing of Transplant Surgery and Its Impact on Short- and Long-term Outcome After Renal Transplantation.Transplantation direct · 2025Article
- Weekday effect of surgery on in-hospital outcome in pancreatic surgery: a population-based study.Langenbeck's archives of surgery · 2024Article
- The liver transplant surgeon Mondays blues: an Italian perspective.Updates in surgery · 2023Article
- Variation of Liver Transplant Practice and Outcomes During Public Holidays in the United States: Analysis of United Network for Organ Sharing Registry.Transplantation direct · 2023Article
- Revisiting the "Weekend Effect" on Adult and Pediatric Liver and Kidney Offer Acceptance.Annals of transplantation · 2022Article
- Intra-aortic balloon pump placement in coronary artery bypass grafting patients by day of admission.Journal of cardiothoracic surgery · 2020Article
- Weekend Effect and in-Hospital Mortality in Elderly Patients with Acute Kidney Injury: A Retrospective Analysis of a National Hospital Database in Italy.Journal of clinical medicine · 2020Article
- Survival Outcomes Are Not Affected When Liver Transplant Surgery Is Done at Night, During Weekends, or Summer Months.Transplantation direct · 2019Article
- Article
- Kidney Discard Rates in the United States During American Transplant Congress Meetings.Transplantation direct · 2019Article
- Weekend Effect in Carotid Endarterectomy.Stroke · 2018Article
- The weekend effect in liver transplantation.PloS one · 2018Article
- Weekday and Survival After Cardiac Surgery-A Swedish Nationwide Cohort Study in 106 473 Patients.Journal of the American Heart Association · 2017Observational
- Is there a "weekend effect" in kidney transplantation?PloS one · 2017Article
- Analyzing the temporal trends of kidney transplantation surgeries and their impact on warm and cold ischemia time in a Canadian setting.Canadian journal of surgery. Journal canadien de chirurgieArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 4 institutions in 3 countries.
Funding
Abstract
objectiveTo determine whether kidney transplants performed during a weekend had worse outcomes than those performed during weekdays.
designRetrospective national database study.
settingUnited Network for Organ Sharing database of the USA.
participants136,715 adult recipients of deceased donor single organ kidney transplants in the USA between 4/1994 and 9/2010.
main outcome measuresThe primary outcomes were patient survival and death-censored and overall allograft survival. Secondary outcomes included initial length of hospital stay after transplantation, delayed allograft function, acute rejection within the first year of transplant, and patient and allograft survival at 1 month and at 1 year after transplantation. Cox proportional hazards models were used to evaluate the impact of weekend kidney transplant surgery on primary and secondary outcomes, adjusting for multiple covariates.
resultsAmong the 136,715 kidney recipients, 72.5% underwent transplantation during a regular weekday (Monday-Friday) and 27.5% during a weekend (Saturday-Sunday). No significant association was noted between weekend transplant status and patient survival, death-censored allograft survival or overall allograft survival in the adjusted analyses (HR 1.01 (95% CI 0.92 to 1.04), 1.012 (95% CI 0.99 to 1.034), 1.012 (95% CI 0.984 to 1.04), respectively). In addition, no significant association was noted between weekend transplant status and the secondary outcomes of patient and graft survival at 1 month and 1 year, delayed allograft function or acute rejection within the first year. Results remained consistent across all definitions of weekend status.
conclusionsThe outcomes for deceased donor kidney transplantation in the USA are not affected by the day of surgery. The operationalisation of deceased donor kidney transplantation may provide a model for other surgeries or emergency procedures that occur over the weekend, and may help reduce length of hospital stay and improve outcomes.
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