Waaseth, Marit; Bakken, Kjersti; Dumeaux, Vanessa; Olsen, Karina Standahl; Rylander, Charlotta; Figenschaug, Yngve; Lund, Eiliv (Journal article; Tidsskriftartikkel; Peer reviewed, 2008-02-14)
Background: Hormone replacement therapy use (HRT) is associated with increased breast cancer risk. Our
primary objective was to explore hormone levels in plasma according to HRT use, body mass index (BMI) and
menopausal status. A secondary objective was to validate self-reported questionnaire information on
menstruation and HRT use in the Norwegian Women and Cancer postgenome cohort (NOWAC).
Methods: ...