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GENDER DIFFERENCES IN GLIOMA - FINDINGS FROM THE SWEDISH NATIONAL QUALITY REGISTRY FOR PRIMARY BRAIN TUMORS
Umeå University, Faculty of Medicine, Department of Radiation Sciences, Oncology.
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2018 (English)In: Neuro-Oncology, ISSN 1522-8517, E-ISSN 1523-5866, Vol. 20, p. 267-267Article in journal, Meeting abstract (Other academic) Published
Abstract [en]

Background

An often debated topic in neuro-oncology are the differences in incidence and survival between men and women with glioma. To the Swedish National Quality Registry for Primary Brain Tumors (SNQR) over 90% of all Swedish patients with primary brain tumor have been reported since 1999. We therefore conducted a study of clinical factors in relation to gender in patients registered with high grade glioma using data from the SNQR.

Methods

The SNQR was searched for patients diagnosed with high grade glioma from 1999 through 2016 and clinical data were analyzed for gender differences regarding prognostic factors, tumor location and survival.

Results

In all 5470 patients were identified, 2268 women and 3202 men, giving a ratio of 1:1.4. We found a survival benefit for women when analyzing the whole time period. While there was no difference in median survival (315 versus 326 days for women versus men), there were significantly more long term survivors among women, with mean survival being 742 versus 628 days (p=0.03). The survival benefit for women was also only present in those being younger than 50 years at diagnosis. We looked at the prognostic factors age, performance status (PS) and surgery in relation to gender. We found that median age for being diagnosed with high grade glioma was significantly higher in women than men (63 versus 62 years, p=0.002) and the ratio of women in relation to men increases with increasing age, the ratios for younger than 50 years being 1:1.5 and over 50 years 1:1.39. A higher fraction of the women are over 60 years when diagnosed compared to men (57% vs 53%, p=0.002). For PS we identified that significantly more women were reported to have PS 3 and for men more PS 0 was registered. For type of surgery we found no gender differences. For tumor location more women had tumors in the frontal and less in the temporal lobe as compared to men.

Conclusion

In the Swedish National Quality Registry for Primary Brain Tumors we identified differences in incidence and survival between men and women related to age and also a disparity regarding PS and tumor location. If the cause of these clinical differences is due to molecular background or has other causes warrants further study.

Place, publisher, year, edition, pages
OXFORD UNIV PRESS INC , 2018. Vol. 20, p. 267-267
National Category
Cancer and Oncology
Identifiers
URN: urn:nbn:se:umu:diva-157545ISI: 000460645600195OAI: oai:DiVA.org:umu-157545DiVA, id: diva2:1302691
Conference
13th Meeting of the European-Association-of-Neurooncology (EANO), OCT 10-14, 2018, Stockholm, SWEDEN
Note

Supplement 3

Available from: 2019-04-05 Created: 2019-04-05 Last updated: 2019-04-05Bibliographically approved

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Asklund, ThomasHenriksson, Roger

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CiteExportLink to record
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Citation style
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