ArticleCancers2023
Treatment of Colorectal Cancer in Certified Centers: Results of a Large German Registry Study Focusing on Long-Term Survival.
Article in Cancers, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
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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
11 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Evidence-based guideline diagnosis, treatment, prevention and aftercare of oropharyngeal and hypopharyngeal carcinoma.German medical science : GMS e-journal · 2025Guideline
- Does access to quality accreditation improve health? - Patient-level evidence from German cancer care.The European journal of health economics : HEPAC : health economics in prevention and care · 2026Article
- The effects of certification of head and neck cancer centers on the survival of patients with a head and neck cancer.BMC cancer · 2026Article
- Global benchmarks for minimally invasive right hemicolectomy for cancer.The British journal of surgery · 2025Article
- Comparison of survival in ovarian cancer patients following treatment in certified gynecologic oncology centers and non-certified hospitals: a German retrospective cohort study (WiZen).Journal of ovarian research · 2025Article
- Heterogeneity of treatment preferences in the absence of guideline recommendations - a case vignette study in colorectal cancer tumor boards in Germany, Austria and Switzerland.BMC gastroenterology · 2025Article
- Article
- An analysis of the distribution of bone and soft tissue sarcoma diagnoses and their disparities in Southwest Germany: a multicenter approach.Frontiers in oncology · 2025Article
- Endometrial Cancer - Long-Term Survival in Certified Cancer Centers and Non-Certified Hospitals: Comparative Analysis Based on a Large German Retrospective Cohort Study (WiZen).Geburtshilfe und Frauenheilkunde · 2024Article
- In-Hospital Mortality and Associated Factors among Colorectal Cancer Patients in Germany.Cancers · 2024Article
- Treatment in certified cancer centers is related to better survival in patients with colon and rectal cancer: evidence from a large German cohort study.World journal of surgical oncology · 2024Article
Corrections and comments
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Authors and funding
17 authors.
Funding
Abstract
(1) Background: The WiZen study is the largest study so far to analyze the effect of the certification of designated cancer centers on survival in Germany. This certification program is provided by the German Cancer Society (GCS) and represents one of the largest oncologic certification programs worldwide. Currently, about 50% of colorectal cancer patients in Germany are treated in certified centers. (2) Methods: All analyses are based on population-based clinical cancer registry data of 47.440 colorectal cancer (ICD-10-GM C18/C20) patients treated between 2009 and 2017. The primary outcome was 5-year overall survival (OAS) after treatment at certified cancer centers compared to treatment at other hospitals; the secondary endpoint was recurrence-free survival. Statistical methods included Kaplan-Meier analysis and multivariable Cox regression. (3) Results: Treatment at certified hospitals was associated with significant advantages concerning 5-year overall survival (HR 0.92, 95% CI 0.89, 0.96, adjusted for a broad range of confounders) for colon cancer patients. Concentrating on UICC stage I-III patients, for whom curative treatment is possible, the survival benefit was even larger (colon cancer: HR 0.89, 95% CI 0.84, 0.94; rectum cancer: HR 0.91, 95% CI 0.84, 0.97). (4) Conclusions: These results encourage future efforts for further implementation of the certification program. Patients with colorectal cancer should preferably be directed to certified centers.
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