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Title: Development and evaluation of a computerised risk assessment tool for breast cancer prevention
Author: Braithwaite, D.
Awarding Body: University of Cambridge
Current Institution: University of Cambridge
Date of Award: 2004
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Objective: To develop and evaluate a prototype tool, with two different types of user interface, designed to support general practitioners’ and patients’ decisions regarding breast cancer risk and preventive options. Methods: Four studies were conducted: 1. A web-based survey of 268 general practitioners examining their attitudes and intentions about using computerised genetic risk tools in clinical practice. 2. An experimental web-based study of alternative risk communication strategies for breast cancer risk communication, and specifically the impact of visual displays, in a sample of 334 general practitioners, 3. A systematic review and meta-analysis of five controlled trials and 16 prospective studies of genetic counselling for familial cancer, designed to inform the choice of outcome measures and time points for the intervention, in the evaluation of patient self-assessment of their breast cancer risk. 4. A randomised pilot study of computer support for patients’ self-assessment of their breast cancer risk versus usual care in a sample of 72 women and a family history of breast cancer. Results: Study 1 showed that the majority of the participants were interested in using computerised tools for the management of familial cancer. Study 2 found significant differnces in perceived clarity and usefulness of the risk information in relation to the format in which that information were presented, demonstrating the importance of visual displays in risk communication. Controlled trials from Study 3 showed that genetic counselling improved knowledge of cancer genetics but did not alter the level of perceived risk, general anxiety or cancer worry while prospective studies reported short-term improvements in these outcomes. Using the outcome measures identified in Study 3, Study 4 found that computerised breast cancer risk assessment was as effective as nurse counselling at improving women’s risk accuracy and reducing cancer worry.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available