For question 10.8
"You have heard that mortality from pneumococcal disease in the elderly has declined..."
"...Medicare administrator is unconvinced that there is a causal relationship between vaccinating children and decreased mortality in adults."
a.) There are many more serotypes of pneumococcus than the 7 included in Prevnar®. How could you use this information to make your case for causality stronger? [2]
Is our outcome of interest mortality due to pneumococcal disease as in the first part of the question, or decreased total mortality?
Thank you.