The impact of the Women's Health Initiative Randomized Controlled Trial 2002 on perceived risk communication and use of postmenopausal hormone therapy in Germany.

Objective: The purpose of this representative, nationwide telephone survey was to collect information about postmenopausal hormone therapy (HT) use in relation to women's knowledge about the Women's Health Initiative Randomized Controlled Trial 2002 (WHI-RCT) in Germany.

Design: During July 2003, telephone interviews were conducted with randomly selected women aged 45 to 60 years (N = 10,030; response 59.9%; completed interviews n = 6,007).