Patient characteristics and quality of life rating.

Note: ADT: Androgen Deprivation Therapy; GED: General Education Development Test; MMSE: Mini Mental State Examination; QOL: FACT-P quality of life score; there is no difference between groups in age (t = 2.080, p = 0.166, two-sided two-sample t test); there is no difference between groups in MMSE score (t = 2.101, p = 0.273, two-sided two-sample t test); Staging follows the current guidelines of the 2010 American Joint Committee on Cancer (AJCC); there is also no difference across the two time points in the change of QOL between groups (F = 0.015, p = 0.905, interaction, repeated measures analysis of variance).