title: Long-term treatment results of elderly patients with prostate cancer in Japan: an analysis of prognostic factors.
abstract: BACKGROUND
  The management of elderly patients with prostate cancer is an important issue because the incidence of prostate cancer is high in old men, and people are also living longer today. The present retrospective study was therefore conducted to evaluate the long-term clinical outcome of elderly patients with prostate cancer and to analyze the prognostic factors.
  
  
  METHODS
  Between 1980 and 1992, 151 patients aged 75 to 89 years old were diagnosed as having prostate cancer. The patients were initially managed by hormonal therapy in 117, radical prostatectomy in 11, external radiotherapy in 20, chemotherapy in 1 and no treatment in 2 cases. The clinical outcome of the patients was analyzed in relation to clinical stage, histological grade and treatment methods received.
  
  
  RESULTS
  By univariate analysis, the stage and treatment methods were significant variables for overall and cause-specific survival rates, and grade was a significant variable for cause-specific survival rate of the patients. However, multivariate analysis revealed that stage was the only independent prognostic factor for overall as well as cause-specific survival of the patients. Among the patients with stage A2-B disease, a comparison between those treated definitively and non-definitively revealed no difference in terms of overall and relative survival rates.
  
  
  CONCLUSIONS
  The presence of advanced prostate cancer disease had the greatest impact on the survival of the elderly patients. On the other hand, localized prostate cancer was satisfactorily managed with non-definitive almost as well as with definitive treatment.
authors.affiliation: Department of Urology, Fukui Medical University, Matsuoka, Japan. urohk@fmsra.fukui-med.ac.jp
authors.forename: H
authors.initials: H
authors.lastname: Kanamaru
authors.forename: Y
authors.initials: Y
authors.lastname: Arai
authors.forename: H
authors.initials: H
authors.lastname: Akino
authors.forename: Y
authors.initials: Y
authors.lastname: Suzuki
authors.forename: N
authors.initials: N
authors.lastname: Oyama
authors.forename: H
authors.initials: H
authors.lastname: Yoshida
authors.forename: K
authors.initials: K
authors.lastname: Okada
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D003131:Combined Modality Therapy; D006801:Humans; D008297:Male; D015999:Multivariate Analysis; D009367:Neoplasm Staging; D011379:Prognosis; D011471:Prostatic Neoplasms / Q000401:mortality / Q000473:pathology* / Q000628:therapy; D012189:Retrospective Studies; D016019:Survival Analysis; D015996:Survival Rate; D016896:Treatment Outcome