Question

A different group of researchers conducted a similar cross-sectional study to examine the association between regular alcohol consumption (exposure) and liver cirrhosis (outcome) but used a different study sample. They obtained a prevalence ratio (PR) of disease of 1.60 for the association between alcohol consumption and liver cirrhosis. Which of the following is the correct interpretation of the prevalence ratio (PR)? a) The risk of liver cirrhosis among regular alcohol consumers of alcohol is 1.6 times that of non-regular alcohol consumers O b) The prevalence of liver cirrhosis among regular alcohol consumers of alcohol is 1.6 times that of non-regular alcohol consumers O c) The odds of prevalent liver cirrhosis among regular alcohol consumers of alcohol is 1.6 times that of non-regular alcohol consumers O d) All of the above e) None of the above

Answer 1

Prevalence ratio = Prevalence of disease in exposed / Prevalence of disease in non-exposed

So PR of 1.6 means the prevalence of liver cirrhosis among regular alcohol consumers is 1.6 times that among non-regular alcohol consumers.

So answer is B.