PMID: 26813014Jan 28, 2016Paper

The value of ipsilateral breast tumor recurrence as a quality indicator: hospital variation in the Netherlands

Nederlands tijdschrift voor geneeskunde
Margriet van der Heiden-van der LooPetra H Peeters

Abstract

All Dutch hospitals are obliged to report their 5-year ipsilateral breast tumor recurrence (IBTR) rate after breast cancer surgery. Experts decided that these rates should not exceed 5%. This study determined the value of IBTR as an indicator to compare quality of care between hospitals. Cohort study All patients with breast cancer (pT1-3, any N, M0) who underwent surgery in 1 of 92 Dutch hospitals from 2003 to 2006 were identified in the Netherlands Cancer Registry. Data of recurrence was retrieved from hospital records. Five-year IBTR rates for breast-conserving surgery (BCS) and mastectomy were calculated using the Kaplan-Meier method. Hospital variation was presented in funnel plots . Multivariate analysis was used to assess hospital characteristics associated with IBTR rates. A total of 40,892 breast cancer patients were included. The overall 5-year IBTR rate was 2.85% (95%-CI 2.68-3.03) and was significantly lower for BCS than for mastectomy (2.38% vs 3.45%, p < 0.001). IBTR rates decreased over time in both groups. Rates varied between 0.77 and 5.70% between hospitals. When random variation is taken into account, only extremely high IBTR rates can be detected as deviant from the target value of 5%. Adjusting for tumor an...Continue Reading

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