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Anticancer Res. 2020 Feb;40(2):1041-1048. doi: 10.21873/anticanres.14040.

Treatment and Other Healthcare Use of Breast Cancer Patients With a Previous Cancer Diagnosis.

Author information

1
EPIUnit - Instituto de Saúde Pública, University of Porto, Porto, Portugal.
2
Department of Forensic and Public Health Sciences and Medical Education, Faculty of Medicine, University of Porto, Porto, Portugal.
3
Academic Promoting Team - Institute Jules Bordet, Brussels, Belgium.
4
Instituto Português de Oncologia do Porto FG, EPE (IPO-Porto), Porto, Portugal.
5
National School of Public Health, Universidade Nova de Lisboa, Lisbon, Portugal.
6
EPIUnit - Instituto de Saúde Pública, University of Porto, Porto, Portugal nlunet@med.up.pt.

Abstract

BACKGROUND/AIM:

To quantify the association between a previous cancer diagnosis and healthcare use among breast cancer (BC) patients, and estimate five-year recurrence-free survival (RFS).

PATIENTS AND METHODS:

Women with BC were classified according to a previous cancer diagnosis (BC or other). Healthcare use during the first year and five-year RFS were obtained through clinical and administrative records. Adjusted odds ratios and hazard ratios (HR) were estimated.

RESULTS:

Among 681 BC patients, 21 had a previous BC and 32 a previous non-BC. The latter were less likely to receive anthracycline-based combination chemotherapy. The former had higher odds of mastectomy and genetic testing. Five-year RFS HRs (95% confidence interval) were 2.75 (0.79-9.52) and 0.52 (0.07-3.89) for previous BC and non-BC, respectively.

CONCLUSION:

Previous cancer was associated with less anthracycline-based combination chemotherapy, and patients were more likely to undergo mastectomy and genetic testing. These findings highlight the need for assessment of previous treatments, personal genetic risk and current BC characteristics.

KEYWORDS:

Breast neoplasm; healthcare use; second primary neoplasms; treatment

PMID:
32014951
DOI:
10.21873/anticanres.14040
[Indexed for MEDLINE]

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