Survival after locoregional recurrence or second primary breast cancer: impact of the disease-free interval.

The association between the disease-free interval (DFI) and survival after a locoregional recurrence (LRR) or second primary (SP) breast cancer remains uncertain. The objective of this study is to clarify this association to obtain more information on expected prognosis. Women first diagnosed with e...

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Main Authors: Annemieke Witteveen, Annemiek B G Kwast, Gabe S Sonke, Maarten J IJzerman, Sabine Siesling
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2015-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4393268?pdf=render
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author Annemieke Witteveen
Annemiek B G Kwast
Gabe S Sonke
Maarten J IJzerman
Sabine Siesling
author_facet Annemieke Witteveen
Annemiek B G Kwast
Gabe S Sonke
Maarten J IJzerman
Sabine Siesling
author_sort Annemieke Witteveen
collection DOAJ
description The association between the disease-free interval (DFI) and survival after a locoregional recurrence (LRR) or second primary (SP) breast cancer remains uncertain. The objective of this study is to clarify this association to obtain more information on expected prognosis. Women first diagnosed with early breast cancer between 2003-2006 were selected from the Netherlands Cancer Registry. LRRs and SP tumours within five years of first diagnosis were examined. The five-year period was subsequently divided into three equal intervals. Prognostic significance of the DFI on survival after a LRR or SP tumour was determined using Kaplan-Meier estimates and multivariable Cox regression analysis. Follow-up was complete until January 1, 2014. A total of 37,278 women was included in the analysis. LRRs or SP tumours were diagnosed in 890 (2,4%) and 897 (2,4%) respectively. Longer DFI was strongly and independently related to an improved survival after a LRR (long versus short: HR 0.65, 95% CI 0.48-0.88; medium versus short HR 0.81, 95% CI 0.65-1.01). Other factors related to improved survival after LRR were younger age (<70 years) and surgical removal of the recurrence. No significant association was found between DFI and survival after SP tumours. This is the first study to explore the association between the DFI and survival after recurrence in a nationwide population-based cancer registry. The DFI before a LRR is an independent prognostic factor for survival, with a longer DFI predicting better prognosis.
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spelling doaj.art-d973e2baf6a945a4a3dd84a09a57ca0f2022-12-21T19:25:34ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-01104e012083210.1371/journal.pone.0120832Survival after locoregional recurrence or second primary breast cancer: impact of the disease-free interval.Annemieke WitteveenAnnemiek B G KwastGabe S SonkeMaarten J IJzermanSabine SieslingThe association between the disease-free interval (DFI) and survival after a locoregional recurrence (LRR) or second primary (SP) breast cancer remains uncertain. The objective of this study is to clarify this association to obtain more information on expected prognosis. Women first diagnosed with early breast cancer between 2003-2006 were selected from the Netherlands Cancer Registry. LRRs and SP tumours within five years of first diagnosis were examined. The five-year period was subsequently divided into three equal intervals. Prognostic significance of the DFI on survival after a LRR or SP tumour was determined using Kaplan-Meier estimates and multivariable Cox regression analysis. Follow-up was complete until January 1, 2014. A total of 37,278 women was included in the analysis. LRRs or SP tumours were diagnosed in 890 (2,4%) and 897 (2,4%) respectively. Longer DFI was strongly and independently related to an improved survival after a LRR (long versus short: HR 0.65, 95% CI 0.48-0.88; medium versus short HR 0.81, 95% CI 0.65-1.01). Other factors related to improved survival after LRR were younger age (<70 years) and surgical removal of the recurrence. No significant association was found between DFI and survival after SP tumours. This is the first study to explore the association between the DFI and survival after recurrence in a nationwide population-based cancer registry. The DFI before a LRR is an independent prognostic factor for survival, with a longer DFI predicting better prognosis.http://europepmc.org/articles/PMC4393268?pdf=render
spellingShingle Annemieke Witteveen
Annemiek B G Kwast
Gabe S Sonke
Maarten J IJzerman
Sabine Siesling
Survival after locoregional recurrence or second primary breast cancer: impact of the disease-free interval.
PLoS ONE
title Survival after locoregional recurrence or second primary breast cancer: impact of the disease-free interval.
title_full Survival after locoregional recurrence or second primary breast cancer: impact of the disease-free interval.
title_fullStr Survival after locoregional recurrence or second primary breast cancer: impact of the disease-free interval.
title_full_unstemmed Survival after locoregional recurrence or second primary breast cancer: impact of the disease-free interval.
title_short Survival after locoregional recurrence or second primary breast cancer: impact of the disease-free interval.
title_sort survival after locoregional recurrence or second primary breast cancer impact of the disease free interval
url http://europepmc.org/articles/PMC4393268?pdf=render
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