The table below demonstrates the relative risk (RR) and 95 CI for incident ischemic stroke by quintile of grain consumption in the prospective Nurses' Health Study Use the table to answer the following questions Looking at model 3 , what is the association between Whole grain , Refined grain and Total grain , respectively, and ischemic heart disease, comparing the results of quintile 5 versus quintile 1 Using full sentences, please comment on the direction and magnitude of any significant associations you identify (for non significant associations, you can simply state that there is no association)

Question: The table below demonstrates the relative risk (RR) and 95% CI for incident ischemic stroke by quintile of grain consumption in the prospective Nurses' Health