试验组的总有效率高于对照组，优效性检验成立。
The test group had a higher overall effective rate than the control group.
方法：采用随机、双盲、安慰剂平行组对照、剂量反应研究设计和优效性检验。
METHODS: Cortex fraxini total coumarin was involved in a randomized, double-blind, placebo parallel control, dosage-reaction design and superiority test.
另外，对照的设立应结合考虑RCT研究的目的和设计，如非劣效性、等效性、优效性试验。
Besides, the selection of controls must focus on the design and aim of RCTs, such as non-inferiority, equivalence and superiority trials.
本文证明了这种估计的强相合性，并讨论了其优效渐近正态性。
In this paper, we prove the strong consistency of the estimate, its efficiency asymptotic normality is discussed, too.
本文证明了这种估计的强相合性，并讨论了其优效渐近正态性。
In this paper, we prove the strong consistency of the estimate, its efficiency asymptotic normality is discussed, too.
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