In Prostate Cancer and Prostatic Diseases Katja Aben and colleagues showed that most Dutch patients with very low risk prostate cancer are managed with active surveillance, thereby delaying and possible avoiding therapy and its side effects. Variation in the proportion of patients with active surveillance in individual hospitals exists but is limited. These results are based on the nationwide initiative ProZIB (ProstaatkankerZorg In Beeld).Background
To provide insight in the treatment variation of very-low-risk prostate cancer patients and to assess the role of hospital-related factors.
All patients diagnosed with very-low-risk prostate cancer (cT1c-cT2a, PSA < 10 ng/ml, Gleason score <7 and <3 positive cores) in 2015 and 2016 were identified through the population-based Netherlands Cancer Registry. Multilevel logistic regression analyses were performed to examine the crude and case-mix adjusted probability of immediate treatment vs. active-surveillance (AS) according to hospital of diagnosis and to evaluate the effect of patient-, tumour-, and hospital-related factors.
In all, 2047 (85.4%) of the 2396 patients with very-low-risk prostate cancer were managed with AS. The crude proportion of patients with AS varied from 33.3 to 100% between hospitals. Case-mix adjusted probability varied from 71 to 97%. Tumour stage cT2a vs. cT1c (OR 2.0, 95%CI 1.1-3.6), two vs. one positive core (OR 2.8, 95%CI 1.6-4.7), diagnostic MRI (OR 2.8, 95%CI 1.5-5.2), discussion of a patient in a multi-disciplinary team (OR 2.2, 95%CI 1.1-4.5), discussion of treatment options with the patient (OR 3.3, 95%CI 1.5-7.4) and type of hospital (non-university referral hospital vs. community hospital: OR 0.5, 95%CI 0.2-0.9) were associated with immediate treatment.
The majority of Dutch very-low-risk prostate cancer patients is managed with AS but variation between hospitals exists. Part of the variation is explained by patient- and tumour characteristics but also hospital-related factors play a role. This implies that clinical practice could be improved.
Immediate treatment vs. active-surveillance in very-low-risk prostate cancer: the role of patient-, tumour-, and hospital-related factors.
Jansen H, van Oort IM, van Andel G, Wijsman BP, Pos FJ, Hulshof MCCM, Hulsbergen-van de Kaa CA, van Leenders GJLH, Fütterer JJ, Somford DM, Busstra MB, van Moorselaar RJA, Kiemeney LA, Aben KKH.
Katja Aben is member of theme Urological cancers.
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