Clinical trial · Interventional
Effect of Information About the Benefits and Harms of Mammography on Women's Decision Making
The Effect of Receiving Information About the Benefits and Harms of Mammography Screening on Women's Decision Making
NCT03046004CI-TRIAL-00051073InforMacompletedN/AClinicalTrials.gov clinicaltrialsProvenance
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
The aim of this study is to assess the effect of receiving information about the benefits and harms of mammography screening on informed choice, decisional conflict, intention to participate in the Early Detection of Breast Cancer Program (EDBCP), and satisfaction. The primary outcome is informed choice about breast screening (adequate knowledge, and consistency between attitudes and intentions). The sample of participants is composed by 400 women from Catalonia and the Canary Islands (Spain) who will receive their first invitation to participate in the EDBCP of the Public Health Service in a period of 2-4 months.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Breast Cancer Screening | Breast Neoplasm | ONTOLOGY_EXACT | 0.90 |
Interventions
Interventions (2)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Decision aid for breast cancer screening | Other | — | UNRESOLVED |
| Standard leaflet | Other | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- EXPERIMENTAL
- label
- Decision aid
- description
- Women in the intervention arm will receive a leaflet with detailed information on the benefits (breast cancer mortality reduction, less intensive treatments) and harms (false positive results and overdiagnosis).
- interventionNames
- Other: Decision aid for breast cancer screening
- type
- ACTIVE_COMPARATOR
- label
- Control
- description
- Women in the control arm will receive a standard leaflet that does not mention harms and recommends accepting the invitation to participate in the biennial exams of the EDBCP.
- interventionNames
- Other: Standard leaflet
Primary outcomes (1)
- measure
- Informed choice
Eligibility
Eligibility (as posted)
- Sex
- Female
- Minimum age
- 49 Years
- Maximum age
- 50 Years
Show eligibility criteria text
Inclusion Criteria: * Women aged 49-50 who - in 2-4 months - will be invited to participate for the first time in the EDBCP of the Institut Hospital del Mar d'Investigacions Mèdiques (IMIM, Barcelona), ICO-Hospitalet (Hospitalet de Llobregat), Lleida Health Region, and the Canary Islands. * Women with low health literacy will be included Exclusion Criteria: * Previous history of breast cancer * Difficulty speaking Spanish or Catalan * Cognitive impairment to understand or complete the materials based on the interviewer judgment
References
Publications (5)
- BACKGROUNDToledo-Chavarri A, Rue M, Codern-Bove N, Carles-Lavila M, Perestelo-Perez L, Perez-Lacasta MJ, Feijoo-Cid M; InforMa Study Group. A qualitative study on a decision aid for breast cancer screening: Views from women and health professionals. Eur J Cancer Care (Engl). 2017 May;26(3). doi: 10.1111/ecc.12660. Epub 2017 Feb 1. PMID 28145105
- BACKGROUNDPerez-Lacasta MJ, Martinez-Alonso M, Garcia M, Sala M, Perestelo-Perez L, Vidal C, Codern-Bove N, Feijoo-Cid M, Toledo-Chavarri A, Cardona A, Pons A, Carles-Lavila M, Rue M; with the InforMa Group. Effect of information about the benefits and harms of mammography on women's decision making: The InforMa randomised controlled trial. PLoS One. 2019 Mar 26;14(3):e0214057. doi: 10.1371/journal.pone.0214057. eCollection 2019. PMID 30913217
- BACKGROUNDPons-Rodriguez A, Martinez-Alonso M, Perestelo-Perez L, Garcia M, Sala M, Rue M; en nombre del grupo InforMa; El grupo InforMa esta formado por. [Informed choice in breast cancer screening: the role of education]. Gac Sanit. 2021 May-Jun;35(3):243-249. doi: 10.1016/j.gaceta.2020.01.002. Epub 2020 Mar 12. Spanish. PMID 32173050
- RESULTHersch J, Barratt A, Jansen J, Irwig L, McGeechan K, Jacklyn G, Thornton H, Dhillon H, Houssami N, McCaffery K. Use of a decision aid including information on overdetection to support informed choice about breast cancer screening: a randomised controlled trial. Lancet. 2015 Apr 25;385(9978):1642-52. doi: 10.1016/S0140-6736(15)60123-4. Epub 2015 Feb 18. PMID 25701273
- DERIVEDCarles M, Martinez-Alonso M, Pons A, Perez-Lacasta MJ, Perestelo-Perez L, Sala M, Vidal C, Garcia M, Toledo-Chavarri A, Codern N, Feijoo-Cid M, Romero A, Pla R, Soler-Gonzalez J, Castells X, Rue M; InforMa Group. The effect of information about the benefits and harms of mammography on women's decision-making: study protocol for a randomized controlled trial. Trials. 2017 Sep 12;18(1):426. doi: 10.1186/s13063-017-2161-7. PMID 28899412