Bello MA, Menezes RFD, Silva B, da Silva RDC, Cavalcanti RS, Moraes TDFDC, Tonellotto F, Aguiar SSD, Martucci RB, Bergmann A, Thuler LC. Impact of Treatment Type on Overall Survival in ElderlyBrazilian Women with Breast Cancer.
Asian Pac J Cancer Prev 2016;
17:4769-4774. [PMID:
27893210 PMCID:
PMC5454630 DOI:
10.22034/apjcp.2016.17.10.4769]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Objective: To analyze the survival of elderly patients with breast cancer according to the type of treatment used.
Methods: A cohort study of women aged 80 or over with breast cancer registered with the Brazilian National Cancer
Institute (Instituto Nacional do Câncer - INCA) between 2008 and 2009 was conducted. Prognosis was analyzed
according to the cancer treatment performed: surgery, radiotherapy, or hormone therapy. Analysis of the overall 5-year
survival rate was performed using the Kaplan - Meier method, and comparisons of curves were undertaken using the
log-rank test. For multiple regression analysis, Cox regression was used, adjusting for age and clinical stage, considering
values of p < 0.05 as significant. Data were all analyzed using the statistical package SPSS version 20. Results: 70
women with a mean age of 84.0 ± 3.7 years at diagnosis participated in the study. The median follow-up time was
37.1 months (range 0.5–75.5), and 31 deaths (44.3%) occurred during this time. The median survival time was 51.2
months (95% CI, 44.9–57.4), higher in those who underwent surgery (p = 0.012) and those who had hormone therapy
(p=0.001). Treatment with surgery reduced the risk of death by 61.7% (HR 0.3; 95% CI, 0.1–0.6; p = 0.001) when
adjusted for clinical stage and age at diagnosis. However, there was no significant benefit from radiotherapy (HR 1.2;
95% CI, 0.5–2.5; p = 0.694). Conclusion: Treatment with surgery and hormone therapy increased the survival of our
Brazilian patients with breast cancer aged 80 or over.
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