Abstract
Survival among patients with metastatic breast cancer may vary according to the site of metastasis and receptor status. We used Danish nationwide medical registries to establish a cohort of patients with metastatic breast cancer (870 with de novo metastatic disease and 3518 with recurrent disease with distant metastasis) diagnosed during 1997–2011. We examined 1-year and >1 to 5-year mortality associated with first site of metastasis and receptor expression status of the primary tumor. Cox proportional regression was used to compute confounder-adjusted mortality rate ratios (MRRs) associated with site of metastasis, stratified by receptor status. Overall 1-year and >1 to 5-year mortality risks were 36 and 69 %, respectively. Risk of death within 1 year was highest for brain-only (62 %) and liver-only (43 %) involvement and nearly the same for patients with lung-only (32 %), bone-only (32 %) involvement, and other/combination of sites (34 %). Using bone-only metastasis as reference, women with brain-only metastasis had more than two-fold increased risk of dying. The adjusted MRR for women with liver-only metastasis also was increased, though less pronounced. Patients with lung-only [adjusted MRR 0.9 (95 % confidence interval (CI) 0.8, 1.1)] or other metastases [adjusted MRR 1.0 (95 % CI 0.9, 1.2)] had similar mortality as patients with bone-only metastasis. Positive hormonal receptor status was a favorable prognostic factor. Metastatic breast cancer has a serious prognosis. Patients with brain-only metastasis had the highest mortality. Positive hormonal receptor status on the primary tumor was a favorable prognostic factor for all metastatic sites.
Similar content being viewed by others
Abbreviations
- CCI:
-
Charlson Comorbidity Index
- CI:
-
Confidence interval
- DCR:
-
The Danish Cancer Registry
- DNPR:
-
The Danish National Patient Registry
- ICD:
-
International Classification of Diseases
- MRR:
-
Mortality rate ratio
- TNM:
-
Classification of malignant tumours
References
Ruiterkamp J, Ernst MF, de Munck L, van der Heiden-van der Loo M, Bastiaannet E, van de Poll-Franse LV, Bosscha K, Tjan-Heijnen VC, Voogd AC (2011) Improved survival of patients with primary distant metastatic breast cancer in the period of 1995–2008. A nationwide population-based study in the Netherlands. Breast Cancer Res Treat 128:495–503
Saphner T, Tormey DC, Gray R (1996) Annual hazard rates of recurrence for breast cancer after primary therapy. J Clin Oncol 14:2738–2746
Muss HB, Case LD, Richards F II, White DR, Cooper MR, Cruz JM, Powell BL, Spurr CL, Capizzi RL (1991) Interrupted versus continuous chemotherapy in patients with metastatic breast cancer. The Piedmont Oncology Association. N Engl J Med 325:1342–1348
Norton L (1991) Metastatic breast cancer. Length and quality of life. N Engl J Med 325:1370–1371
Andre F, Slimane K, Bachelot T, Dunant A, Namer M, Barrelier A, Kabbaj O, Spano JP, Marsiglia H, Rouzier R, Delaloge S, Spielmann M (2004) Breast cancer with synchronous metastases: trends in survival during a 14-year period. J Clin Oncol 22:3302–3308
Dawood S, Broglio K, Ensor J, Hortobagyi GN, Giordano SH (2010) Survival differences among women with de novo stage IV and relapsed breast cancer. Ann Oncol 21:2169–2174
de Glas NA, Bastiaannet E, de Craen AJ, van de Velde CJ, Siesling S, Liefers GJ, Portielje JE (2015) Survival of older patients with metastasised breast cancer lags behind despite evolving treatment strategies—a population-based study. Eur J Cancer 51:310–316
Lobbezoo DJ, van Kampen RJ, Voogd AC, Dercksen MW, van den Berkmortel F, Smilde TJ, van de Wouw AJ, Peters FP, van Riel JM, Peters NA, de Boer M, Peer PG, Tjan-Heijnen VC (2015) Prognosis of metastatic breast cancer: are there differences between patients with de novo and recurrent metastatic breast cancer? Br J Cancer 112:1445–1451
Ho VK, Gijtenbeek JM, Brandsma D, Beerepoot LV, Sonke GS, van der Heiden-van der Loo M (2015) Survival of breast cancer patients with synchronous or metachronous central nervous system metastases. Eur J Cancer 51:2508–2516
Gerratana L, Fanotto V, Bonotto M, Bolzonello S, Minisini AM, Fasola G, Puglisi F (2015) Pattern of metastasis and outcome in patients with breast cancer. Clin Exp Metastasis 32:125–133
Solomayer EF, Diel IJ, Meyberg GC, Gollan C, Bastert G (2000) Metastatic breast cancer: clinical course, prognosis and therapy related to the first site of metastasis. Breast Cancer Res Treat 59:271–278
Frank L (2000) Epidemiology. When an entire country is a cohort. Science 287:2398–2399
Storm HH, Michelsen EV, Clemmensen IH, Pihl J (1997) The Danish Cancer Registry—history, content, quality and use. Dan Med Bull 44:535–539
Gjerstorff ML (2011) The Danish Cancer Registry. Scand J Public Health 39:42–45
Bjerregaard B, Larsen OB (2011) The Danish Pathology Register. Scand J Public Health 39:72–74
Schmidt M, Schmidt SA, Sandegaard JL, Ehrenstein V, Pedersen L, Sorensen HT (2015) The Danish National Patient Registry: a review of content, data quality, and research potential. Clin Epidemiol 7:449–490
Blichert-Toft M, Christiansen P, Mouridsen HT (2008) Danish Breast Cancer Cooperative Group–DBCG: history, organization, and status of scientific achievements at 30-year anniversary. Acta Oncol 47:497–505
Jensen AR, Overgaard J, Storm HH (2002) Validity of breast cancer in the Danish Cancer Registry. A study based on clinical records from one county in Denmark. Eur J Cancer Prev 11:359–364
Jensen AO, Norgaard M, Yong M, Fryzek JP, Sorensen HT (2009) Validity of the recorded International Classification of Diseases, 10th edition diagnoses codes of bone metastases and skeletal-related events in breast and prostate cancer patients in the Danish National Registry of Patients. Clin Epidemiol 1:101–108
Youlden DR, Cramb SM, Dunn NA, Muller JM, Pyke CM, Baade PD (2012) The descriptive epidemiology of female breast cancer: an international comparison of screening, incidence, survival and mortality. Cancer Epidemiol 36:237–248
Venur VA, Leone JP (2016) Targeted therapies for brain metastases from breast cancer. Int J Mol Sci. doi:10.3390/ijms17091543
Dawood S, Broglio K, Esteva FJ, Ibrahim NK, Kau SW, Islam R, Aldape KD, Yu TK, Hortobagyi GN, Gonzalez-Angulo AM (2008) Defining prognosis for women with breast cancer and CNS metastases by HER2 status. Ann Oncol 19:1242–1248
Lorusso G, Ruegg C (2012) New insights into the mechanisms of organ-specific breast cancer metastasis. Semin Cancer Biol 22:226–233
Soni A, Ren Z, Hameed O, Chanda D, Morgan CJ, Siegal GP, Wei S (2015) Breast cancer subtypes predispose the site of distant metastases. Am J Clin Pathol 143:471–478
Vaz-Luis I, Lin NU, Keating NL, Barry WT, Lii H, Winer EP, Freedman RA (2015) Racial differences in outcomes for patients with metastatic breast cancer by disease subtype. Breast Cancer Res Treat 151:697–707
Lin NU, Amiri-Kordestani L, Palmieri D, Liewehr DJ, Steeg PS (2013) CNS metastases in breast cancer: old challenge, new frontiers. Clin Cancer Res 19:6404–6418
Pagani O, Senkus E, Wood W, Colleoni M, Cufer T, Kyriakides S, Costa A, Winer EP, Cardoso F, Task Force ESO-MBC (2010) International guidelines for management of metastatic breast cancer: can metastatic breast cancer be cured? J Natl Cancer Inst 102:456–463
Author contribution
HTS and AGO conceived the study idea and designed the study. HTS and UHJ established and designed the cohort. AGO reviewed the literature and directed the study-specific analyses together with HTS, which were carried out by UHJ. All authors participated in the discussion and interpretation of the results. AGO organised the writing and wrote the initial drafts. All authors critically revised the manuscript for intellectual content and approved the final version. HTS is the guarantor for the article and accepts full responsibility for the work and the conduct of the study, had access to the data, and oversaw the decision to publish.
Funding
The study was funded by the Program for Clinical Research Infrastructure (PROCRIN) established by the Lundbeck Foundation and the Novo Nordisk Foundation and administered by the Danish Regions, and by the Danish Cancer Society (Grant No. R73-A4284-13-S17). The authors confirm independence from the sponsors; the content of the article has not been influenced by the sponsors.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare that they have no conflicts of interest.
Electronic supplementary material
Below is the link to the electronic supplementary material.
Rights and permissions
About this article
Cite this article
Ording, A.G., Heide-Jørgensen, U., Christiansen, C.F. et al. Site of metastasis and breast cancer mortality: a Danish nationwide registry-based cohort study. Clin Exp Metastasis 34, 93–101 (2017). https://doi.org/10.1007/s10585-016-9824-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10585-016-9824-8