| 单词 | case-control | 
| 释义 | > as lemmascase-control   case-control adj.				 [compare control n. 5]			 Medicine (attributive) designating a type of epidemiological study in which each individual having a particular disease or other attribute of interest is compared with a control who is a similar individual without the disease or attribute, typically in order to identify aetiological factors; belonging, relating to, or based on such a study. ΚΠ 1956    Lancet 1 Sept. 447/1  				Provided the parents of the dead child have not moved out of the area, only one doctor interviews each case-control pair. 1991    Nucl. Energy June 135/2  				At Sellafield yet another complexity was added to the leukaemia/radiation debate by the results of a case control study. 2005    Wall St. Jrnl. 5 Aug. 		(Central ed.)	  a9/1  				Case-control studies are notorious for the potential of major sources of bias influencing the results. < as lemmas | 
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