The Study of Women's Health Across the Nation (SWAN) Examines

Multiple Choice

The Study of Women's Health Across the Nation (SWAN) examines the physical and psychological changes affecting women during their middle-age years. The study began in 1994 and has since conducted annual interviews on a group of 3500 women near the menopausal transition. Which type of study is described?

A) A survey using a probability sample
B) A retrospective case-control study
C) A prospective cohort
D) Anecdotal evidence