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Waaijer MEC, Lemij AA, de Boer AZ, Bastiaannet E, van den Bos F, Derks MGM, Kroep JR, Liefers GJ, Portielje JEA, de Glas NA. The impact of geriatric characteristics and comorbidities on distant metastases and other cause mortality in older women with non-metastatic breast cancer treated with primary endocrine therapy. Breast Cancer Res Treat 2023; 201:471-478. [PMID: 37479944 PMCID: PMC10460719 DOI: 10.1007/s10549-023-07029-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 06/28/2023] [Indexed: 07/23/2023]
Abstract
INTRODUCTION In recent years, primary surgical treatment of older women with non-metastatic breast cancer has decreased in favor of primary endocrine therapy (PET). PET can be considered in women with a remaining life expectancy of less than five years. The aim of this study was to (1) assess the risk of distant metastases and other cause mortality over ten years in women aged 65 and older with stage I-III breast cancer treated with PET, (2) whether this was associated with geriatric characteristics and comorbidities and to (3) describe the reasons on which the choice for PET was made. METHODS Women were included from the retrospective FOCUS cohort, which comprises all incident women diagnosed with breast cancer aged 65 or older between January 1997 and December 2004 in the Comprehensive Cancer Center Region West in the Netherlands. We selected women (N = 257) with stage I-III breast cancer and treated with PET from this cohort. Patient characteristics (including comorbidity, polypharmacy, walking, cognitive and sensory impairment), treatment and tumor characteristics were retrospectively extracted from charts. Outcomes were distant metastasis and other cause mortality. Cumulative incidences were calculated using the Cumulative Incidence for Competing Risks method (CICR); and subdistribution hazard ratios (SHR) were tested between groups based on age, geriatric characteristics and comorbidity with the Fine and Gray model. RESULTS Women treated with PET were on average 84 years old and 41% had one or more geriatric characteristics. Other cause mortality exceeded the cumulative incidence of distant metastasis over ten years (83 versus 5.6%). The risk of dying from another cause further increased in women with geriatric characteristics (SHR 2.06, p < 0.001) or two or more comorbidities (SHR 1.72, p < 0.001). Often the reason for omitting surgery was not recorded (52.9%), but if recorded surgery was omitted mainly at the patient's request (18.7%). DISCUSSION This study shows that the cumulative incidence of distant metastasis is much lower than other cause mortality in older women with breast cancer treated with PET, especially in the presence of geriatric characteristics or comorbidities. This confirms the importance of assessment of geriatric characteristics to aid counseling of older women.
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Affiliation(s)
- M E C Waaijer
- Department of Gerontology and Geriatrics, Leiden University Medical Center, Leiden, the Netherlands
| | - A A Lemij
- Department of Surgery, Leiden University Medical Center, Leiden, the Netherlands
- Department of Medical Oncology, Leiden University Medical Center, Post zone C7-Q, P.O. Box 9600 RC, Leiden, the Netherlands
| | - A Z de Boer
- Department of Surgery, Leiden University Medical Center, Leiden, the Netherlands
- Department of Medical Oncology, Leiden University Medical Center, Post zone C7-Q, P.O. Box 9600 RC, Leiden, the Netherlands
| | - E Bastiaannet
- Department of Surgery, Leiden University Medical Center, Leiden, the Netherlands
- Department of Medical Oncology, Leiden University Medical Center, Post zone C7-Q, P.O. Box 9600 RC, Leiden, the Netherlands
| | - F van den Bos
- Department of Gerontology and Geriatrics, Leiden University Medical Center, Leiden, the Netherlands
| | - M G M Derks
- Department of Medical Oncology, Leiden University Medical Center, Post zone C7-Q, P.O. Box 9600 RC, Leiden, the Netherlands
| | - J R Kroep
- Department of Medical Oncology, Leiden University Medical Center, Post zone C7-Q, P.O. Box 9600 RC, Leiden, the Netherlands
| | - G J Liefers
- Department of Surgery, Leiden University Medical Center, Leiden, the Netherlands
| | - J E A Portielje
- Department of Medical Oncology, Leiden University Medical Center, Post zone C7-Q, P.O. Box 9600 RC, Leiden, the Netherlands
| | - N A de Glas
- Department of Medical Oncology, Leiden University Medical Center, Post zone C7-Q, P.O. Box 9600 RC, Leiden, the Netherlands.
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de Boer AZ, de Glas NA, Marang-van de Mheen PJ, Dekkers OM, Siesling S, de Munck L, de Ligt KM, Liefers GJ, Portielje JEA, Bastiaannet E. Effect of omission of surgery on survival in patients aged 80 years and older with early-stage hormone receptor-positive breast cancer. Br J Surg 2020; 107:1145-1153. [PMID: 32259294 PMCID: PMC7496090 DOI: 10.1002/bjs.11568] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/07/2019] [Accepted: 02/02/2020] [Indexed: 11/08/2022]
Abstract
BACKGROUND Surgery is increasingly being omitted in older patients with operable breast cancer in the Netherlands. Although omission of surgery can be considered in frail older patients, it may lead to inferior outcomes in non-frail patients. Therefore, the aim of this study was to evaluate the effect of omission of surgery on relative and overall survival in older patients with operable breast cancer. METHODS Patients aged 80 years or older diagnosed with stage I-II hormone receptor-positive breast cancer between 2003 and 2009 were selected from the Netherlands Cancer Registry. An instrumental variable approach was applied to minimize confounding, using hospital variation in rate of primary surgery. Relative and overall survival was compared between patients treated in hospitals with different rates of surgery. RESULTS Overall, 6464 patients were included. Relative survival was lower for patients treated in hospitals with lower compared with higher surgical rates (90·2 versus 92·4 per cent respectively after 5 years; 71·6 versus 88·2 per cent after 10 years). The relative excess risk for patients treated in hospitals with lower surgical rates was 2·00 (95 per cent c.i. 1·17 to 3·40). Overall survival rates were also lower among patients treated in hospitals with lower compared with higher surgical rates (48·3 versus 51·3 per cent after 5 years; 15·0 versus 19·7 per cent after 10 years respectively; adjusted hazard ratio 1·07, 95 per cent c.i. 1·00 to 1·14). CONCLUSION Omission of surgery is associated with worse relative and overall survival in patients aged 80 years or more with stage I-II hormone receptor-positive breast cancer. Future research should focus on the effect on quality of life and physical functioning.
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Affiliation(s)
- A Z de Boer
- Department of Surgery, Leiden, the Netherlands.,Department of Medical Oncology, Leiden, the Netherlands
| | - N A de Glas
- Department of Medical Oncology, Leiden, the Netherlands
| | | | - O M Dekkers
- Department of Clinical Epidemiology, Leiden University Medical Centre, Leiden, the Netherlands
| | - S Siesling
- Department of Research and Development, Netherlands Comprehensive Cancer Organization, Utrecht, the Netherlands.,Department of Health Technology and Services Research, Technical Medical Centre, University of Twente, Enschede, the Netherlands
| | - L de Munck
- Department of Research and Development, Netherlands Comprehensive Cancer Organization, Utrecht, the Netherlands
| | - K M de Ligt
- Department of Research and Development, Netherlands Comprehensive Cancer Organization, Utrecht, the Netherlands.,Department of Health Technology and Services Research, Technical Medical Centre, University of Twente, Enschede, the Netherlands
| | - G J Liefers
- Department of Surgery, Leiden, the Netherlands
| | | | - E Bastiaannet
- Department of Surgery, Leiden, the Netherlands.,Department of Medical Oncology, Leiden, the Netherlands
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