Hormonal contraception and risk of breast cancer and breast cancer in situ among Swedish women 15-34 years of age: A nationwide register-based study

• Main Authors: Jenny Niemeyer Hultstrand (Author), Kristina Gemzell-Danielsson (Author), Helena Kopp Kallner (Author), Henrik Lindman (Author), Per Wikman (Author), Inger Sundström-Poromaa (Author)
• Format: Book
• Published: Elsevier, 2022-10-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Summary: Background: Evidence on a possible association between newer hormonal contraceptives (HC) and risk of breast cancer remains inconclusive, especially as concerns progestogen-only methods. Methods: In this nationwide prospective cohort study, all Swedish women aged 15-34 at study start on Jan...