ArticleCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2017
Association between day of the week of elective surgery and postoperative mortality.
Article in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.
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Who cites it
12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 29 citations in OpenAlex.
- Magnitude and modifiers of the weekend effect in hospital admissions: a systematic review and meta-analysis.BMJ open · 2019Pooled it
- Weekend Surgical Care and Postoperative Mortality: A Systematic Review and Meta-Analysis of Cohort Studies.Medical care · 2018Pooled it
- Pre-weekend effect in pulmonary resection for non-small cell lung cancer: a multicenter retrospective cohort study.Surgery today · 2026Observational
- On Patient Safety: The Weekend Effect.Clinical orthopaedics and related research · 2025Article
- Postoperative Outcomes Following Preweekend Surgery.JAMA network open · 2025Article
- Patient flow modeling and simulation to study HAI incidence in an Emergency Department.Smart health : international conference, ICSH ... ICSH (Conference : Smart Health) · 2024Article
- The "Weekday Effect"-Does It Impact Esophageal Cancer Surgery Outcomes?Journal of gastrointestinal cancer · 2023Article
- Impact of the period of the day on all-cause mortality and major cardiovascular complications after arterial vascular surgeries.PloS one · 2023Article
- Weekday and outcomes of elective cardiac surgery in the UK: a large retrospective database analysis.European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery · 2022Article
- Efficacy and safety of endoscopic sleeve gastroplasty and laparoscopic sleeve gastrectomy with 12+ months of adjuvant multidisciplinary support.BMC primary care · 2022Article
- Association of day of the week with mortality after elective right hemicolectomy for colon cancer: Case analysis from the National Clinical Database.Annals of gastroenterological surgery · 2021Article
- Weekend Effect in Carotid Endarterectomy.Stroke · 2018Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIn prior studies, higher mortality was observed among patients who had elective surgery on a Friday rather than earlier in the week. We investigated whether mortality after elective surgery was associated with day of the week of surgery in a Canadian population and whether the association was influenced by surgeon experience and volume.
methodsWe conducted a population-based retrospective cohort study in the province of Ontario, Canada. We included adults who underwent 1 of 12 elective daytime surgical procedures from Apr. 1, 2002, to Dec. 31, 2012. The primary outcome was 30-day mortality. We used generalized estimating equations to compare outcomes for surgeries performed on different days of the week, adjusting for patient and surgeon factors.
resultsA total of 402 899 procedures performed by 1691 surgeons met our inclusion criteria. The median length of hospital stay was 6 (interquartile range 5-8) days. Surgeon experience varied significantly by day of week (
interpretationAlthough surgeon experience differed across days of the week, the risk of 30-day mortality after elective surgery was similar regardless of which day of the week the procedure took place.
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