title: Do endometrial cancer patients benefit from metformin intake?
abstract: OBJECTIVE
  Since metformin was reported to decrease overall cancer incidence and mortality and to have antiproliferative and antinvasive properties, we investigated the impact of metformin intake on survival in endometrial cancer patients.
  
  
  METHODS
  Medical records and survival data of 126 patients with endometrial cancer were analyzed retrospectively U Mann-Whitney and chi-square tests were applied to compare clinicopathological features. Kaplan Meier model with log-rank test was used to compare survival in the subgroups. Cox proportional hazard model was applied to analyze the relationships between particular factors and overall survival.
  
  
  RESULTS
  107 patients met study criteria and were divided into three groups: 1) patients with type 2 diabetes and metformin users (n = 30), 2) patients with type 2 diabetes and metformin non-users (n = 38), 3) patients without diabetes mellitus (n = 39). No difference in survival between metformin users versus metformin non-users (p = 0.86) was observed. Metformin intake, diabetes mellitus co morbidity, plasma glucose level and BMI appeared without influence on survival. When the analysis was restricted to the subgroup of type I endometrial cancer or to endometroid histological type, still neither metformin intake nor diabetes influenced the prognosis.
  
  
  CONCLUSIONS
  Metformin intake does not alter overall survival in endometrial cancer patients. Diabetes mellitus has no influence on survival in endometrial cancer patients.
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Lemańska
authors.forename: Mikołaj
authors.initials: M
authors.lastname: Zaborowski
authors.forename: Marek
authors.initials: M
authors.lastname: Spaczyński
authors.forename: Ewa
authors.initials: E
authors.lastname: Nowak-Markwitz
mesh_terms: D000328:Adult; D000368:Aged; D000970:Antineoplastic Agents / Q000627:therapeutic use; D003924:Diabetes Mellitus, Type 2 / Q000150:complications / Q000188:drug therapy*; D004359:Drug Therapy, Combination; D016889:Endometrial Neoplasms / Q000150:complications / Q000188:drug therapy* / Q000401:mortality; D005260:Female; D006801:Humans; D007004:Hypoglycemic Agents / Q000627:therapeutic use*; D053208:Kaplan-Meier Estimate; D008687:Metformin / Q000627:therapeutic use*; D008875:Middle Aged; D012189:Retrospective Studies; D018709:Statistics, Nonparametric; D016019:Survival Analysis; D015996:Survival Rate
chemical_list: D000970:Antineoplastic Agents; D007004:Hypoglycemic Agents; D008687:Metformin