Question: Start with the dataset from homework #2 that was restricted to seniors with MCCs. Further restrict to those with values of black or white for

  1. Start with the dataset from homework #2 that was restricted to seniors with MCCs. Further restrict to those with values of black or white for the race variable.Conduct multiple factor stratified analysis of the association between race (black versus white) and unplanned hospitalizations, simultaneously assessing the role of age group (65-74, 75-84, 85-99) and sex:

  1. Is there effect modification by age group and sex on the additive and/or multiplicative scale? Report your results in a table and explain your answer.

  1. Is there joint confounding by age group and sex? Report your results in a table and explain your answer.

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