Question 1) Use the info below to answer each section. Create 2 by 2 table

Section A: Calculate the odds ratio for the association of having a first degree family history of breast cancer and the development of breast cancer.

Section B) Calculate the odds ratio for the association of "Ever use oral contraceptives" and the development of breast cancer.

?Section C) Calculate the odds ratio for the association of reaching menarche after 12 years "Age of menarche" and the development of breast cancer.

?Section D) Calculate the odds ratio for the association of postmenopausal status ("Menopausal status") and the development of breast cancer.

?Section E) Calculate the odds ratio for the association of "Ever breastfed" and the development of breast cancer.

first degree family history of breast cancer Cases/Controls

no 3,170/3,478

yes 513/502

Ever use oral contraceptives Case/Controls

no 2,452/2806

yes 935/1145

Age of menarche 12 1,714/2,329\f