【单选题】【消耗次数：1】
818研究是一项前瞻性上市后Ⅳ期研究，评价了低起始剂量vs. 标准起始剂量口服罗沙司他治疗中国CKD透析患者贫血。关于818研究结果，以下表述错误的是？
①
低起始剂量组患者Hb达标比例与标准起始剂量组相近
②
在治疗初始阶段，标准起始剂量可更加高效地提升Hb水平
③
低起始剂量组的不良反应发生率较高起始剂量组更低
④
低起始剂量组与高起始剂量组的安全性相似，且均未发现新增的不良事件
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