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Background  Cervical cancer is a leading cause of morbidity and mortality for women worldwide. Different histopathological cervical cancer subtypes (i.e., adenocarcinoma/adenosquamous carcinoma, and squamous cell carcinoma) are all treated similarly with definitive radiotherapy or concurrent chemoradiotherapy, but studies have reported differing survival prognoses. In this review and meta-analysis, we compared the disease-free and overall survivals of patients with cervical cancer treated with definitive radiotherapy or concurrent chemoradiotherapy according to the histopathological subtypes.    Objective  To compare the disease-free and overall survivals of patients with adenocarcinoma/adenosquamous carcinoma and squamous cell carcinoma cervical cancer treated with definitive radiotherapy or concurrent chemoradiotherapy.    Methods  We systematically searched the Web of Science, EMBASE, CENTRAL, Scopus, and MEDLINE academic databases following PRISMA guidelines. We identified publications to conduct a random-effects meta-analysis to evaluate the disease-free and overall survivals of patients with cervical adenocarcinoma/adenosquamous carcinoma and squamous cell carcinoma treated with definitive radiotherapy or concurrent chemoradiotherapy.    Results  From 963 studies, we found eight eligible ones with 13,859 patients with cervical cancer (mean age, 52.2 ± 7.9 years). Our meta-analysis revealed a poorer outcome of disease-free (hazard ratio, 1.51; 95% CI, 1.28–1.79) and overall (hazard ratio 1.41; 95% CI, 1.26–1.57) survivals for patients with adenocarcinoma/adenosquamous carcinoma undergoing definitive radiotherapy or concurrent chemoradiotherapy than for those with squamous cell carcinoma undergoing similar treatments. We also observed that larger tumor size and advanced tumor stage are also significant prognostic factors that adversely impact survival outcomes in cervical cancer patients undergoing definitive radiotherapy or concurrent chemoradiotherapy.    Conclusion  Our results show poor disease-free and overall survivals for patients with cervical cancer and adenocarcinoma/adenosquamous carcinoma than for those with squamous cell carcinoma after treatment with definitive radiotherapy or concurrent chemoradiotherapy. Our findings clarify the risks associated with the conventional management of cervical cancer according to the histological type.

frontiers in medicine

Survival of Patients With Cervical Cancer Treated With Definitive Radiotherapy or Concurrent Chemoradiotherapy According to Histological Subtype: A Systematic Review and Meta-Analysis