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Title: Recruitment of men to a multi-centre diabetes prevention trial: an evaluation of traditional and online promotional strategies.
Austin Authors: Bracken, Karen;Hague, Wendy;Keech, Anthony;Conway, Ann;Handelsman, David J;Grossmann, Mathis ;Jesudason, David;Stuckey, Bronwyn;Yeap, Bu B;Inder, Warrick;Allan, Carolyn;McLachlan, Robert;Robledo, Kristy P;Wittert, Gary
Affiliation: Anzac Research Institute, and Andrology Department, Concord Hospital, Sydney, NSW, Australia
Department of Endocrinology and Diabetes, Keogh Institute of Medical Research, Sir Charles Gairdner Hospital and Medical School, University of Western Australia, Perth, WA, Australia
Queen Elizabeth Hospital, Adelaide, SA, Australia
Department of Medicine, Austin Health, The University of Melbourne, Heidelberg, Victoria, Australia
Freemasons Foundation Centre for Men's Health, School of Medicine, University of Adelaide, Adelaide, SA, Australia
NHMRC Clinical Trials Centre, University of Sydney, Sydney, NSW, Australia
Department of Clinical Research, Hudson Institute of Medical Research, Melbourne, VIC, Australia
Princess Alexandra Hospital, Brisbane, QLD, Australia
Department of Endocrinology and Diabetes, Medical School, University of Western Australia and Fiona Stanley Hospital, Perth, WA, Australia
Department of Endocrinology, Austin Health, Heidelberg, Victoria, Australia
Issue Date: 19-Jun-2019 2019-06-12
Publication information: Trials 2019; 20(1): 366
Abstract: Effective interventions are required to prevent the current rapid increase in the prevalence of Type 2 diabetes. Clinical trials of large-scale interventions to prevent Type 2 diabetes are essential but recruitment is challenging and expensive, and there are limited data regarding the most cost-effective and efficient approaches to recruitment. This paper aims to evaluate the cost and effectiveness of a range of promotional strategies used to recruit men to a large Type 2 diabetes prevention trial. An observational study was conducted nested within the Testosterone for the Prevention of Type 2 Diabetes (T4DM) study, a large, multi-centre randomised controlled trial (RCT) of testosterone treatment for the prevention of Type 2 diabetes in men aged 50-74 years at high risk of developing diabetes. Study participation was promoted via mainstream media-television, newspaper and radio; direct marketing using mass mail-outs, publicly displayed posters and attendance at local events; digital platforms, including Facebook and Google; and online promotions by community organisations and businesses. For each strategy, the resulting number of participants and the direct cost involved were recorded. The staff effort required for each strategy was estimated based on feedback from staff. Of 19,022 men screened for the study, 1007 (5%) were enrolled. The most effective recruitment strategies were targeted radio advertising (accounting for 42% of participants), television news coverage (20%) and mass mail-outs (17%). Other strategies, including radio news, publicly displayed posters, attendance at local events, newspaper advertising, online promotions and Google and Facebook advertising, each accounted for no more than 4% of enrolled participants. Recruitment promotions cost an average of AU$594 per randomised participant. The most cost-effective paid strategy was mass mail-outs by a government health agency (AU$745 per participant). Other paid strategies were more expensive: mail-out by general practitioners (GPs) (AU$1104 per participant), radio advertising (AU$1081) and newspaper advertising (AU$1941). Radio advertising, television news coverage and mass mail-outs by a government health agency were the most effective recruitment strategies. Close monitoring of recruitment outcomes and ongoing enhancement of recruitment activities played a central role in recruitment to this RCT. ANZCTR, ID: ACTRN12612000287831 . Registered on 12 March 2012.
DOI: 10.1186/s13063-019-3485-2
ORCID: 0000-0002-6085-445X
PubMed URL: 31217024
Type: Journal Article
Subjects: Advertising
Diabetes prevention
Men’s health
Participant recruitment
Randomised controlled trials
Recruitment strategies
Social media
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