Question

Neonatal Listeriosis Descriptive Stats Exercise Using the data table provided, respond to the following prompts: 1. Looking at the variables in the table, which variables are: Nominal: Ordinal: 2. Using gender and survival, set up a 2 x 2 contingency table for the data. 3. Which variables will require you to calculate something before you can further analyze them? 4. Create a case definition. 5. What would the numerator be for this group of cases? 6. What would the denominator be for this group of cases?

Answer 1

1) NOMINAL: gender, delivery type,delivery site,outcome,admitted symptom.

ORDINAL: DOB, symptom date, culture date.

2)

	Lived	Died	Total
M	6	3	9
F	8	3	11
Total	14	6	20

3) We must have frequency of exposed group and non exposed group and also need frequency of outcome (like positive & negative outcome) in both exposed and non exposed group.

4) Case definition specially used in the field of public health. Case definition is clinical criterion used to find out whether an individual or populations health status or outcome is associated to a disease or some health events.

5) Numerator: total no. of people developed the specific disease

6) Denominator: total no. of people is at risk