What did the researchers want the study to determine?
What health condition(s) did the researchers study?
What factors did the researchers investigate to determine an association with the outcome listed above? There may be more than one.
Who did the researchers study? How many?
What type of epidemiological study design (observational or experimental) does the study describe? Why?
What type(s) or method(s) were used to collect the data for the study?
What were the results of the study? What were the conclusions of the researchers?