María José Pérez-Lacasta|Montserrat Martínez?Alonso|Montse Garcia|María Sala|Lilisbeth Perestelo?Pérez|Carmen Vidal|Núria Codern?Bové|María Feijoo-Cid|Ana Toledo?Chávarri|Àngels Cardona|Anna Pons|Misericòrdia Carles-Lavila|Montserrat Rué
Effect of information about the benefits and harms of mammography on women’s decision making: The InforMa randomised controlled trial
Universidad Rovira i Virgili|Universitat de Lleida|Biomedical Research Institute of Lleida|Institut Català d'Oncologia|Institut d'Investigació Biomédica de Bellvitge|Hospital Del Mar|Hospital del Mar Research Institute|Municipal Institute for Medical Research|Spanish Clinical Research Network|Spanish Clinical Research Network|Servicio Canario de la Salud|Institut Català d'Oncologia|Institut d'Investigació Biomédica de Bellvitge|Agència de Qualitat i Avaluació Sanitàries de Catalunya|Universitat Autònoma de Barcelona|Universitat Autònoma de Barcelona|Servicio Canario de la Salud|Fundación Canaria de Investigación Sanitaria|Agència de Qualitat i Avaluació Sanitàries de Catalunya|Universidad Rovira i Virgili|Universitat de Lleida|Biomedical Research Institute of Lleida|Spanish Clinical Research Network
spain women invited breast screening usually informed potential harms screening objective informa study assess effect receiving information benefits harms breast screening informed choice decisionmaking outcomes women approaching age invitation mammography screeningtwostage randomised controlled trial first stage 40 elementary territorial units public healthcare system selected randomised intervention control second stage women aged 4950 years randomly selected target sample size 400 women women intervention arm received decision aid da detailed information benefits harms screening women control arm received standard leaflet mention harms recommended accepting invitation participate breast cancer screening program bcsp primary outcome informed choice defined adequate knowledge intentions consistent attitudes secondary outcomes included decisional conflict worry breast cancer time perspective opinions da leaflet participation bcspin intervention group 232 203 women made informed choice compared 05 197 women control group p 0001 attitudes intentions similar study groups high frequency women intending screened 828 vs 822 p 0893 decisional conflict significantly lower intervention group differences observed confidence decision anxiety participation bcspwomen spain lack knowledge benefits harms breast screening providing quantitative information benefits harms produced considerable increase knowledge informed choice high acceptance informative materialstrial identifier nct03046004 clinicaltrialsgov registry registered february 4 2017 trial name informa study