The following questions are based on the Research Article Summary of the paper, "Changing dynamics

of the drug overdose epidemic in the United States from 1979 through 2016" by Jalal et al., published in

Science in 2018. (Note: The full article is also included if you would like to see the more detailed

findings, but the questions below can be answered from the one page summary on the first page).

a) From the one-page summary, what is your best assessment of what the case definition is in

this study?

b) How did the authors assess the background rate of drug overdose deaths in this study?

In questions c, d, and e, below, please summarize the descriptive epidemiology of the findings

presented in this one-page summary with respect to the following: