<prompt> In a case controlled study. It is found that the disease is more common in the group taking coffee as compared to the control group. The significance of this is -Cause and effect relationship establishedDisease median can be calculatedCaffeine is associated with occurrence of diseaseControls will not get the disease  <response>: Ans. is c i.e., Caffeine is associated with occurrence of disease Case-control study does not establish the cause and effect relationship because it can not distinguish between cause and associated factors. o Case-control study can only tell the association between cause and effect. 