Disease trajectories and mortality among women diagnosed with breast cancer

Abstract Purpose Breast cancer is a common disease with a relatively good prognosis. Therefore, understanding the spectrum of diseases and mortality among breast cancer patients is important, though currently incomplete. We systematically examined the incidence and mortality of all diseases followin...

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Main Authors: Haomin Yang, Yudi Pawitan, Wei He, Louise Eriksson, Natalie Holowko, Per Hall, Kamila Czene
Format: Article
Language:English
Published: BMC 2019-08-01
Series:Breast Cancer Research
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13058-019-1181-5
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author Haomin Yang
Yudi Pawitan
Wei He
Louise Eriksson
Natalie Holowko
Per Hall
Kamila Czene
author_facet Haomin Yang
Yudi Pawitan
Wei He
Louise Eriksson
Natalie Holowko
Per Hall
Kamila Czene
author_sort Haomin Yang
collection DOAJ
description Abstract Purpose Breast cancer is a common disease with a relatively good prognosis. Therefore, understanding the spectrum of diseases and mortality among breast cancer patients is important, though currently incomplete. We systematically examined the incidence and mortality of all diseases following a breast cancer diagnosis, as well as the sequential association of disease occurrences (trajectories). Methods In this national cohort study, 57,501 breast cancer patients (2001–2011) were compared to 564,703 matched women from the general Swedish population and followed until 2012. The matching criteria included year of birth, county of residence, and socioeconomic status. Based on information from the Swedish Patient and Cause of Death Registries, hazard ratios (HR) were estimated for disease incidence and mortality. Conditional logistic regression models were used to identify disease trajectories among breast cancer patients. Results Among 225 diseases, 45 had HRs > 1.5 and p < 0.0002 when comparing breast cancer patients with the general population. Diseases with highest HRs included lymphedema, radiodermatitis, and neutropenia, which are side effects of surgery, radiotherapy, and chemotherapy. Other than breast cancer, the only significantly increased cause of death was other solid cancers (HR = 1.16, 95% CI = 1.08–1.24). Two main groups of disease trajectories were identified, which suggest menopausal disorders as indicators for other solid cancers, and both neutropenia and dorsalgia as diseases and symptoms preceding death due to breast cancer. Conclusions While an increased incidence of other diseases was found among breast cancer patients, increased mortality was only due to other solid cancers. Preventing death due to breast cancer should be a priority to prolong life in breast cancer patients, but closer surveillance of other solid cancers is also needed.
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spelling doaj.art-0727192281b64e1aaa420db704eeff0e2022-12-21T22:44:47ZengBMCBreast Cancer Research1465-542X2019-08-012111810.1186/s13058-019-1181-5Disease trajectories and mortality among women diagnosed with breast cancerHaomin Yang0Yudi Pawitan1Wei He2Louise Eriksson3Natalie Holowko4Per Hall5Kamila Czene6Department of Medical Epidemiology and Biostatistics, Karolinska InstitutetDepartment of Medical Epidemiology and Biostatistics, Karolinska InstitutetDepartment of Medical Epidemiology and Biostatistics, Karolinska InstitutetDepartment of Medical Epidemiology and Biostatistics, Karolinska InstitutetDepartment of Medical Epidemiology and Biostatistics, Karolinska InstitutetDepartment of Medical Epidemiology and Biostatistics, Karolinska InstitutetDepartment of Medical Epidemiology and Biostatistics, Karolinska InstitutetAbstract Purpose Breast cancer is a common disease with a relatively good prognosis. Therefore, understanding the spectrum of diseases and mortality among breast cancer patients is important, though currently incomplete. We systematically examined the incidence and mortality of all diseases following a breast cancer diagnosis, as well as the sequential association of disease occurrences (trajectories). Methods In this national cohort study, 57,501 breast cancer patients (2001–2011) were compared to 564,703 matched women from the general Swedish population and followed until 2012. The matching criteria included year of birth, county of residence, and socioeconomic status. Based on information from the Swedish Patient and Cause of Death Registries, hazard ratios (HR) were estimated for disease incidence and mortality. Conditional logistic regression models were used to identify disease trajectories among breast cancer patients. Results Among 225 diseases, 45 had HRs > 1.5 and p < 0.0002 when comparing breast cancer patients with the general population. Diseases with highest HRs included lymphedema, radiodermatitis, and neutropenia, which are side effects of surgery, radiotherapy, and chemotherapy. Other than breast cancer, the only significantly increased cause of death was other solid cancers (HR = 1.16, 95% CI = 1.08–1.24). Two main groups of disease trajectories were identified, which suggest menopausal disorders as indicators for other solid cancers, and both neutropenia and dorsalgia as diseases and symptoms preceding death due to breast cancer. Conclusions While an increased incidence of other diseases was found among breast cancer patients, increased mortality was only due to other solid cancers. Preventing death due to breast cancer should be a priority to prolong life in breast cancer patients, but closer surveillance of other solid cancers is also needed.http://link.springer.com/article/10.1186/s13058-019-1181-5Breast cancerDisease trajectoryMortality
spellingShingle Haomin Yang
Yudi Pawitan
Wei He
Louise Eriksson
Natalie Holowko
Per Hall
Kamila Czene
Disease trajectories and mortality among women diagnosed with breast cancer
Breast Cancer Research
Breast cancer
Disease trajectory
Mortality
title Disease trajectories and mortality among women diagnosed with breast cancer
title_full Disease trajectories and mortality among women diagnosed with breast cancer
title_fullStr Disease trajectories and mortality among women diagnosed with breast cancer
title_full_unstemmed Disease trajectories and mortality among women diagnosed with breast cancer
title_short Disease trajectories and mortality among women diagnosed with breast cancer
title_sort disease trajectories and mortality among women diagnosed with breast cancer
topic Breast cancer
Disease trajectory
Mortality
url http://link.springer.com/article/10.1186/s13058-019-1181-5
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