Univariate Cox regression of tumor cell ERG IR of patients followed with watchful waiting.

*Reference value.**Cox regression analysis using Gleason score, local tumor stage and tumor ERG-IR as categorical variables.Abbreviations: RR, relative risk; CI, confidence interval; immunoreactivity, IR.#The group includes both Gleason grade 6 and 7 since the number of patients with grade 7 are too few to allow a separate analysis of this group.*参考值。** 开展以格里森评分（Gleason score）、局部肿瘤分期及肿瘤ERG-IR作为分类变量的考克斯回归分析（Cox regression analysis）。 缩写说明：RR为相对风险（relative risk），CI为置信区间（confidence interval），IR为免疫反应性（immunoreactivity）。 # 因7级患者例数过少，无法单独对该亚组进行分析，故本组同时纳入格里森分级6级与7级患者。