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. 2017 Oct 6;8(51):89040-89054.
doi: 10.18632/oncotarget.21648. eCollection 2017 Oct 24.

Marital status and survival in epithelial ovarian cancer patients: a SEER-based study

Xinyu Wang  1 , Xi Li  1 , Shaofei Su  1 , Meina Liu  1
Affiliations

Marital status and survival in epithelial ovarian cancer patients: a SEER-based study

Xinyu Wang et al. Oncotarget. .

Abstract

Marital status has been proved to be correlated to the survival of patients in various cancer types, except for that in the large female population of epithelial ovarian cancer (EOC). In this study, we retrospectively extracted 10905 eligible EOC patients from the Surveillance, Epidemiology, and End Results (SEER) database in the period from 2004 to 2012. We categorized marital status as married, divorced/separated, widowed, and never married. Chi-square test was used to investigate the association between marital status and other variables. The Kaplan-Meier test was adopted to compare survival curves of different groups. Multivariate Cox regression analyses were conducted to estimate the effect of marital status on overall survival (OS) and epithelial ovarian cancer-specific survival (EOCSS). To explore how marital status affected patients diagnosed at the same stage, we further performed subgroup analyses according to TNM stage. The results showed that marital status was an independent predictor for OS and EOCSS. Subgroup analyses indicated that the relationship between marital status and prognosis varied according to different conditions. Widowed patients had poorer prognosis than the other groups in most conditions, while the never married group showed similar risk of mortality as the married ones.

Keywords: SEER; cancer survival; epithelial ovarian cancer; marital status.

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Conflict of interest statement

CONFLICTS OF INTEREST The authors declare that they have no competing interests.

Figures

Figure 1
Figure 1. Kaplan-Meier curves of the effect of marital status on overall survival (OS)
Figure 2
Figure 2. Kaplan-Meier curves of the effect of marital status on epithelial ovarian cancer-specific survival (EOCSS)
Figure 3
Figure 3. Kaplan-Meier curves of the effect of marital status on OS for all patients stratified by stage
Figure 4
Figure 4. Kaplan-Meier curves of the effect of marital status on EOCSS for all patients stratified by stage
Figure 5
Figure 5. Kaplan-Meier curves of the effect of marital status on OS for surgical patients stratified by stage
Figure 6
Figure 6. Kaplan-Meier curves of the effect of marital status on EOCSS for surgical patients stratified by stage
See this image and copyright information in PMC

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