biostudies-literatureUnknown67Sebbag C<h4>Objective</h4>To compare the prevalence of contraception in breast cancer (BC) patients at risk of unintentional pregnancy (i.e. not currently pregnant or trying to get pregnant) and matched controls.<h4>Study design</h4>The FEERIC study (Fertility, Pregnancy, Contraception after BC in France) is a prospective, multicenter case-control study, including localized BC patients aged 18-43 years, matched for age and parity to cancer-free volunteer controls in a 1:2 ratio. Data were collected through online questionnaires completed on the Seintinelles research platform.<h4>Results</h4>In a population of 1278 women at risk of unintentional pregnancy, the prevalence of contraception at study inclusion did not differ significantly between cases (340/431, 78.9%) and controls (666/847, 78.6%, p =Breast (Edinburgh, Scotland)62-70https://www.ebi.ac.uk/biostudies/studies/S-EPMC9982267biostudies-literatureContraception in breast cancer survivors from the FEERIC case-control study (performed on behalf of the Seintinelles research network).PMC9982267Hotton JCoussy FMaitrot-Mantelet LGiacchetti SDecanter CEspie MDumas EDarrigues LGompel AAsselain BHamy ASPlu-Bureau GBrain EGarin CLaot LSebbag CSantulli PSablone LBobrie ALabrosse JRay-Coquard IMailliez ASeintinelles RNRousset-Jablonski CEvrevin CSenechal-Davin CGuerin JReyal FCessot MCoutant CfalseContraception in breast cancer survivors from the FEERIC case-control study (performed on behalf of the Seintinelles research network).<h4>Objective</h4>To compare the prevalence of contraception in breast cancer (BC) patients at risk of unintentional pregnancy (i.e. not currently pregnant or trying to get pregnant) and matched controls.<h4>Study design</h4>The FEERIC study (Fertility, Pregnancy, Contraception after BC in France) is a prospective, multicenter case-control study, including localized BC patients aged 18-43 years, matched for age and parity to cancer-free volunteer controls in a 1:2 ratio. Data were collected through online questionnaires completed on the Seintinelles research platform.<h4>Results</h4>In a population of 1278 women at risk of unintentional pregnancy, the prevalence of contraception at study inclusion did not differ significantly between cases (340/431, 78.9%) and controls (666/847, 78.6%, p =2023-01-01T00:00:00Z2023 Feb2025-04-26T07:39:10.264Z2024-10-18T20:34:25.964ZS-EPMC99822673663082110.1016/j.breast.2022.12.033