title: [Prognostic factors identified by Cox multivariate analysis of surgically treated 1018 laryngeal cancer patients].
abstract: OBJECTIVE
  To study the prognostic factors of 1018 patients with laryngeal cancer treated surgically.
  
  
  METHODS
  All patients were treated surgically for laryngeal cancer from 1984 to 1996. A total of 16 clinical factors was studied by univariate analysis and Cox multivariate model.
  
  
  RESULTS
  The follow-up rate was 93.5% over 5 years. The overall cumulative survival rate was 79.1% at 3 years, 70.2% at 5 years. The 5-year survival rate of T1N0 is the highest, followed by T1N+, T2N0, T3N0, T4N0, T2N+, T4N+, and T3N+. In univariate analysis, the survival was related to patient age, mobility of vocal cords, preoperative T status, preoperative N status, preoperative UICC stage, postoperative T status, postoperative N status, postoperative UICC stage, topographic location of the tumor and tumor size. In Cox multivariate modal, only postoperative N status, mobility of vocal cords and tumor size were independent prognostic factors.
  
  
  CONCLUSIONS
  Independent prognostic factors for patients with laryngeal cancer after curative resection are postoperative N stage, mobility of vocal cords as well as tumor size. Postoperative follow-up and salvage surgery in time should be attached with importance to improve the survival of patients with laryngeal cancer.
authors.affiliation: Department of Otolaryngology, First Hospital, China Medical University, Shenyang 110001, China. doctorduqiang@hotmail.com
authors.forename: Qiang
authors.initials: Q
authors.lastname: Du
authors.forename: Wen-yue
authors.initials: WY
authors.lastname: Ji
authors.forename: Chao
authors.initials: C
authors.lastname: Guan
authors.forename: Qing-yun
authors.initials: QY
authors.lastname: Xu
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007822:Laryngeal Neoplasms / Q000401:mortality / Q000473:pathology / Q000601:surgery*; D007825:Laryngectomy; D008198:Lymph Nodes / Q000473:pathology; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D009364:Neoplasm Recurrence, Local; D009367:Neoplasm Staging; D011379:Prognosis; D016016:Proportional Hazards Models; D016879:Salvage Therapy; D015996:Survival Rate; D014827:Vocal Cords / Q000503:physiopathology