Control arm

常见例句

Women in the control arm had no change in risk.
有节制服用的女性面临的风险没有增加。
hxen.com
The proportion of oral cancers detected at an early stage (i.e. stage I or II) was higher in the intervention arm than the control arm (42% versus 24%, respectively).
就早期（即第一阶段或第二阶段）发现口腔癌的比例来说，干预组高于对照组（分别为42%和24%）。
In the latter scenario, sorafenib should also constitute the control arm of these trials.
在近来的方案中，索拉菲尼将成为这些实验中的控制臂。

The operation could help double arm amputees move their manufactured arms with greater ease and control.

In fact, clinical trial subjects--even those who are in the control arm--are closely monitored and get the best care available.
FORBES
In February of 2009, Bahcall and Chen received the results of the trial: more people were dying in the treatment arm than in the control arm.
NEWYORKER: The Treatment
But every now and again the patients in the treatment arm will live longer than the patients in the control arm, and the two lines on the Kaplan-Meier will diverge.
NEWYORKER: The Treatment