title: Survival and Prognostic Analysis of Primary Nasopharyngeal Carcinoma in North China.
abstract: BACKGROUND
  To investigate the prognostic factors of Nasopharyngeal Carcinoma (NPC).
  
  
  METHODS
  Retrospective analysis was carried out on the clinical data collected from three hospitals in North China between September, 1999 to March, 2012.
  
  
  RESULTS
  Higher survival rates (1, 3, 5, and 10 year) were found in NPC patients who were female, non-smokers, early clinical phase, and T1-2 (p < 0.05). No association was found between survival rates and drinking habits, lesion location, pathological types, N stages, and radiotherapy pattern. The 1-, 3-, and 5-year overall survival rates were equal following both conventional radiotherapy and Intensity-Modulating Radiotherapy (IMRT).
  
  
  CONCLUSIONS
  Patient gender, age, smoking status, clinical stages, and T stages all served as prognostic factors of nasopharyngeal carcinoma.
authors: Yanli
authors: Y
authors: Qu
authors: Yanzhi
authors: Y
authors: Chen
authors: Hong
authors: H
authors: Yu
authors: Yuxia
authors: Y
authors: Zhao
authors: Guanoun
authors: G
authors: Chen
authors: Lu
authors: L
authors: Bai
authors: Dan
authors: D
authors: Liu
authors: Hongxin
authors: H
authors: Su
authors: Hetong
authors: H
authors: Wang
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002277:Carcinoma; D002648:Child; D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D000077274:Nasopharyngeal Carcinoma; D009303:Nasopharyngeal Neoplasms / Q000453:epidemiology* / Q000401:mortality / Q000473:pathology / Q000628:therapy; D009367:Neoplasm Staging; D013517:Otorhinolaryngologic Surgical Procedures; D016016:Proportional Hazards Models; D065840:Protective Factors; D050397:Radiotherapy, Intensity-Modulated; D012189:Retrospective Studies; D018570:Risk Assessment; D012307:Risk Factors; D012737:Sex Factors; D012907:Smoking / Q000009:adverse effects / Q000401:mortality; D015996:Survival Rate; D013997:Time Factors; D016896:Treatment Outcome; D055815:Young Adult