LAUSR

114Background: Female survivors of Hodgkin lymphoma (HL) treated with alkylating chemotherapy (CT) and/or pelvic radiotherapy (RT) have an increased risk of primary ovarian insufficiency (POI). Among women with a natural menopause, POI has been associated with increased risk of cardiovascular disease (CVD). We examined whether treatment-induced POI increases long-term CVD risk in HL survivors. Methods: From a large Dutch cohort of 5-year HL survivors, we selected 918 women who were treated before 41 years of age between 1965 and 2000. Data on HL treatment, menopausal status and cardiovascular events (ischemic heart disease (IHD), heart failure (HF) and valvular heart disease (VHD)) were obtained from medical records, general practitioners and patient questionnaires. CVD risks were estimated with Cox regression models using time-dependent covariates and attained age as the time scale. Results: After a median follow-up of 24 years, 299 out of 918 women (33%) had developed POI (median menopausal age, 34 year...