Problem
Topic: Exposure: Vitamin D/Outcome: Periodontal disease
1) A description of outcome (periodontal disease) that includes the following:
a) The definition of the outcome
b) The burden of your disease in the population
c) A biological description of disease (periodontal disease)
2) A description of your exposure (Vitamin D) that includes the following:
a) The definition of the exposure and how it is measured
b) The prevalence of your exposure in the population
3) How your exposure might be related to your outcome (causally or not)?