Answer Happy

Question 6 (1 point) A study was conducted to investigate the association between early pregnancy and breast cancer risk. Researchers recruited 1,100 women who were pregnant and 1,100 women who were not pregnant at age 25 in 2008. The rate of breast cancer was assessed in both groups of women 20 years later. This is an example of a(n): a) Cross-sectional study b) Case-control study c) Retrospective cohort study d) Prospective cohort study e) Ecological study f) Randomised-controlled trial