Table 1: Descriptive studies

5 out of 10 studies were individual RCTs, of which 3 were 4 arms, 1 was 3 arms and another was 2 arms. On the other hand, there were 4 two-armed CRT and one quasi-experimental study included in this review.本综述纳入的10项研究中，5项为个体随机对照试验（Randomized Controlled Trial, RCT），其中3项设有4个研究组，1项设有3个研究组，剩余1项设有2个研究组。另一方面，本次综述还纳入了4项双臂对照临床试验（Clinical Controlled Trial, CRT）以及1项准实验研究。