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Population-based study of survival for women with serous cancer of the ovary, fallopian tube, peritoneum or undesignated origin - on behalf of the Swedish gynecological cancer group (SweGCG)

Dahm-Kähler, Pernilla; Borgfeldt, Christer LU ; Holmberg, Erik; Staf, Christian; Falconer, Henrik; Bjurberg, Maria LU ; Kjölhede, Preben; Rosenberg, Per; Stålberg, Karin and Högberg, Thomas LU , et al. (2017) In Gynecologic Oncology 144(1). p.167-173
Abstract

Objective: The aim of the study was to determine survival outcome in patients with serous cancer in the ovary, fallopian tube, peritoneum and of undesignated origin. Methods: Nation-wide population-based study of women. ≥. 18. years with histologically verified non-uterine serous cancer, included in the Swedish Quality Registry for primary cancer of the ovary, fallopian tube and peritoneum diagnosed 2009-2013. Relative survival (RS) was estimated using the Ederer II method. Simple and multivariable analyses were estimated by Poisson regression models. Results: Of 5627 women identified, 1246 (22%) had borderline tumors and 4381 had malignant tumors. In total, 2359 women had serous cancer; 71% originated in the ovary (OC), 9% in the... (More)

Objective: The aim of the study was to determine survival outcome in patients with serous cancer in the ovary, fallopian tube, peritoneum and of undesignated origin. Methods: Nation-wide population-based study of women. ≥. 18. years with histologically verified non-uterine serous cancer, included in the Swedish Quality Registry for primary cancer of the ovary, fallopian tube and peritoneum diagnosed 2009-2013. Relative survival (RS) was estimated using the Ederer II method. Simple and multivariable analyses were estimated by Poisson regression models. Results: Of 5627 women identified, 1246 (22%) had borderline tumors and 4381 had malignant tumors. In total, 2359 women had serous cancer; 71% originated in the ovary (OC), 9% in the fallopian tube (FTC), 9% in the peritoneum (PPC) and 11% at an undesignated primary site (UPS). Estimated RS at 5-years was 37%; for FTC 54%, 40% for OC, 34% for PPC and 13% for UPS. In multivariable regression analyses restricted to women who had undergone primary or interval debulking surgery for OC, FTC and PPC, site of origin was not independently associated with survival. Significant associations with worse survival were found for advanced stages (RR 2.63, . P . <. 0.001), moderate (RR 1.90, . P . <. 0.047) and poor differentiation (RR 2.20, . P . <. 0.009), neoadjuvant chemotherapy (RR1.33, . P . <. 0.022), residual tumor (RR 2.65, . P . <. 0.001) and platinum single (2.34, . P . <. 0.001) compared to platinum combination chemotherapy. Conclusion: Survival was poorer for serous cancer at UPS than for ovarian, fallopian tube and peritoneal cancer. Serous cancer at UPS needs to be addressed when reporting and comparing survival rates of ovarian cancer.

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publication status
published
subject
keywords
Cancer origin, Ovarian cancer, Serous cancer, Survival
in
Gynecologic Oncology
volume
144
issue
1
pages
167 - 173
publisher
Academic Press
external identifiers
  • scopus:85005865079
  • wos:000392367000030
ISSN
0090-8258
DOI
10.1016/j.ygyno.2016.10.039
language
English
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yes
id
b6c6c2ea-17ae-41b1-b092-a2e729937efc
date added to LUP
2016-12-30 09:25:29
date last changed
2018-02-11 04:25:16
@article{b6c6c2ea-17ae-41b1-b092-a2e729937efc,
  abstract     = {<p>Objective: The aim of the study was to determine survival outcome in patients with serous cancer in the ovary, fallopian tube, peritoneum and of undesignated origin. Methods: Nation-wide population-based study of women. ≥. 18. years with histologically verified non-uterine serous cancer, included in the Swedish Quality Registry for primary cancer of the ovary, fallopian tube and peritoneum diagnosed 2009-2013. Relative survival (RS) was estimated using the Ederer II method. Simple and multivariable analyses were estimated by Poisson regression models. Results: Of 5627 women identified, 1246 (22%) had borderline tumors and 4381 had malignant tumors. In total, 2359 women had serous cancer; 71% originated in the ovary (OC), 9% in the fallopian tube (FTC), 9% in the peritoneum (PPC) and 11% at an undesignated primary site (UPS). Estimated RS at 5-years was 37%; for FTC 54%, 40% for OC, 34% for PPC and 13% for UPS. In multivariable regression analyses restricted to women who had undergone primary or interval debulking surgery for OC, FTC and PPC, site of origin was not independently associated with survival. Significant associations with worse survival were found for advanced stages (RR 2.63, . P . &lt;. 0.001), moderate (RR 1.90, . P . &lt;. 0.047) and poor differentiation (RR 2.20, . P . &lt;. 0.009), neoadjuvant chemotherapy (RR1.33, . P . &lt;. 0.022), residual tumor (RR 2.65, . P . &lt;. 0.001) and platinum single (2.34, . P . &lt;. 0.001) compared to platinum combination chemotherapy. Conclusion: Survival was poorer for serous cancer at UPS than for ovarian, fallopian tube and peritoneal cancer. Serous cancer at UPS needs to be addressed when reporting and comparing survival rates of ovarian cancer.</p>},
  author       = {Dahm-Kähler, Pernilla and Borgfeldt, Christer and Holmberg, Erik and Staf, Christian and Falconer, Henrik and Bjurberg, Maria and Kjölhede, Preben and Rosenberg, Per and Stålberg, Karin and Högberg, Thomas and Åvall-Lundqvist, Elisabeth},
  issn         = {0090-8258},
  keyword      = {Cancer origin,Ovarian cancer,Serous cancer,Survival},
  language     = {eng},
  number       = {1},
  pages        = {167--173},
  publisher    = {Academic Press},
  series       = {Gynecologic Oncology},
  title        = {Population-based study of survival for women with serous cancer of the ovary, fallopian tube, peritoneum or undesignated origin - on behalf of the Swedish gynecological cancer group (SweGCG)},
  url          = {http://dx.doi.org/10.1016/j.ygyno.2016.10.039},
  volume       = {144},
  year         = {2017},
}