Unit V question

1. Describe a frequent sequence of study designs which is used to address questions of etiology in community health today.

Your response must be at least 200 words in length. 

2. Describe the guidelines for causation published by the U.S. Surgeon General.

Your response must be at least 200 words in length.

3. Differentiate between real and spurious associations in observational studies. Provide at least one example of each type of association.

Your response must be at least 200 words in length.

4. One of the most interesting epidemiological findings of recent years has been the association shown between Helicobacter pylori infection and duodenal or gastric ulcers. Prior to the research on H. pylori, stress and lifestyle factors (such as smoking and alcohol consumption) were considered to be the primary causes of such ulcers. Summarize the evidence suggesting H. Pylori as a causative agent of ulcers.

Your response must be at least 300 words in length. 

 Gordis, L. (2014). Epidemiology (5th ed.). Philadelphia, PA: Saunders.