Relatively Poor Survival of Mucinous Ovarian Carcinoma in Advanced Stage: A Systematic Review and Meta-analysis
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SourceInternational Journal of Gynecological Cancer, 27, 4, (2017), pp. 651-658
Article / Letter to editor
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International Journal of Gynecological Cancer
SubjectRadboudumc 14: Tumours of the digestive tract RIMLS: Radboud Institute for Molecular Life Sciences; Radboudumc 17: Women's cancers RIHS: Radboud Institute for Health Sciences; Radboudumc 17: Women's cancers RIMLS: Radboud Institute for Molecular Life Sciences; Radboudumc 18: Healthcare improvement science RIHS: Radboud Institute for Health Sciences
OBJECTIVE: Overall, patients with mucinous ovarian carcinoma (MOC) are considered to have a better prognosis compared with the whole group of nonmucinous carcinomas. However, some studies indicate that patients with advanced-stage MOC might have a worse prognosis than those with advanced-stage serous ovarian carcinoma (SOC). We carried out a systematic review and meta-analysis of the current literature. MATERIALS AND METHODS: A comprehensive literature search was carried out identifying 19 articles that compare survival of patients with MOC and patients with SOC. Meta-analyses were performed for risk ratio (RR) and hazard ratio (HR) for all International Federation of Gynecology and Obstetrics stages together, as well as for early- and advanced-stage diseases separately. RESULTS: Overall, patients with MOC showed a lower risk of dying within 5 years (RR, 0.67; 95% confidence interval [CI], 0.64-0.69; n = 45 333) and a longer survival (HR, 0.66; 95% CI, 0.58-0.75; HR, 0.88; 95% CI, 0.78-0.98, for univariate and multivariate analyses, respectively; n = 5540) compared with those with SOC. In contrast, in advanced-stage (International Federation of Gynecology and Obstetrics stages III and IV) disease, patients with MOC have a higher risk of dying within 5 years (RR, 1.15; 95% CI, 1.13-1.17; n = 36 113) and a shorter survival (HR, 1.82; 95% CI, 1.71-1.94; n = 19 907). CONCLUSIONS: Patients with advanced-stage MOC have a significantly worse prognosis compared with patients with SOC, whereas in early stage, the prognosis of patients with MOC is better.
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