[The analysis of prognostic factors for prostate cancer by multivariate analysis]

Multivariable analysis (quantification method I and II) was used to investigate the relationship between survival rates and prognostic factors. The items studied were age, stage, pathological differentiation, gait disturbance, acid phosphatase and erythrocyte sedimentation rate (ESR). The data were available for 353 patients for all items. The significance of each item was evaluated in all patients-group, subgroup stratified by their cause of death, and subgroup stratified by their stage. The significance of age and gait disturbance which represent the general condition was proven in all patients, non-cancer death group and stage ABC group. In the cancer death group, stage D group was the most significant as prognostic factor. ESR was the most significant in the stage D group and the significance was gradually increased with the observation time.