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Article

Texting to Reduce Alcohol Misuse (TRAM): main findings from a randomized controlled trial of a text message intervention to reduce binge drinking among disadvantaged men

Citation
Crombie IK, Irvine L, Williams B, Sniehotta FF, Petrie D, Jones C, Norrie J, Evans JMM, Emslie C, Rice PM, Slane PW, Humphris G, Ricketts IW, Melson AJ, Donnan PT & Hapca SM (2018) Texting to Reduce Alcohol Misuse (TRAM): main findings from a randomized controlled trial of a text message intervention to reduce binge drinking among disadvantaged men. Addiction, 113 (9), pp. 1609-1618. https://doi.org/10.1111/add.14229

Abstract
Aims To test the effectiveness of a theoretically based text‐message intervention to reduce binge drinking among socially disadvantaged men. Design A multi‐centre parallel group, pragmatic, individually randomized controlled trial. Setting Community‐based study conducted in four regions of Scotland. Participants A total of 825 men aged 25–44 years recruited from socially disadvantaged areas who had two or more episodes of binge drinking (> 8 UK units on a single occasion) in the preceding 28 days: 411 men were randomized to the intervention and 414 to the control. Intervention and comparator A series of 112 interactive text messages was delivered by mobile phone during a 12‐week period. The intervention was structured around the Health Action Process Approach, a comprehensive model which allows integration of a range of evidence‐based behaviour change techniques. The control group received 89 texts on general health, with no mention of alcohol or use of behaviour change techniques. Measurements The primary outcome measure was the proportion of men consuming > 8 units on three or more occasions (in the previous 28 days) at 12 months post‐intervention. Findings The proportion of men consuming > 8 units on three or more occasions (in the previous 28 days) was 41.5% in the intervention group and 47.8% in the control group. Formal analysis showed that there was no evidence that the intervention was effective [odds ratio (OR) = 0.79, 95% confidence interval (CI) = 0.57–1.08; absolute reduction 5.7%, 95% CI = −13.3 to 1.9]. The Bayes factor for this outcome was 1.3, confirming that the results were inconclusive. The retention was high and similar in intervention (84.9%) and control (86.5%) groups. Most men in the intervention group engaged with the text messages: almost all (92%) replied to text messages and 67% replied more than 10 times. Conclusions A theoretically based text‐messaging intervention aimed at reducing binge drinking in disadvantaged men was not found to reduce prevalence of binge drinking at 12‐month follow‐up.

Keywords
Binge drinking; community based; deprivation; men; narrative; text message intervention

Notes
Additional co-authors: Andrew McKenzie andMarcus Achison

Journal
Addiction: Volume 113, Issue 9

StatusPublished
Author(s)Crombie, Iain K; Irvine, Linda; Williams, Brian; Sniehotta, Falko F; Petrie, Dennis; Jones, Claire; Norrie, John; Evans, Josie M M; Emslie, Carol; Rice, Peter M; Slane, Peter W; Humphris, Gerry; Ricketts, Ian W; Melson, Ambrose J; Donnan, Peter T; Hapca, Simona M
FundersNational Institute for Health Research
Publication date30/09/2018
Publication date online01/06/2018
Date accepted by journal26/03/2018
URLhttp://hdl.handle.net/1893/27405
ISSN0965-2140
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