On the multivariate analysis of the Cox proportional hazards model, miR-30d expression and tumor stage were statistically associated with biochemical recurrence (Table 1, P = 0.003 for miR-30d expression, P = 0.004 for miR-30d and SOCS1 expression, and P = 0.036 for tumor stage). The gene discussed is SOCS1; the disease is neoplasm.