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-
Correct Answer: Caffeine is associated with occurrence of disease
Description: Case-control studies basically comparison study. Cases and control must be comparable with respect to known "confounding factor "such as age , sex occupation, social status, etc. The questions asked relate to personal characteristics and antecedent exposures which may be responsible for the condition studied.
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Social & Preventive Medicine
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