Nicolas Bertholet1, Jean-Bernard Daeppen1, Jennifer McNeely2, Vlad Kushnir3,4, John A Cunningham3,4,5. 1. a Alcohol Treatment Center, Department of Community Medicine and Health , Lausanne University Hospital , Lausanne , Vaud , Switzerland. 2. b Department of Population Health , New York University School of Medicine , New York , New York , USA. 3. c Institute of Mental Health Policy Research, Centre for Addiction and Mental Health , Toronto , Ontario , Canada. 4. d Departments of Psychology and of Psychiatry , University of Toronto , Toronto , Ontario , Canada. 5. e Research School of Population Health, Australian National University , Canberra , Australian Capital Territory , Australia.
Abstract
BACKGROUND: Technology-delivered interventions are useful tools for addressing unhealthy alcohol use. Smartphones in particular offer opportunities to deliver interventions at the user's convenience. A smartphone application with 5 modules (personal feedback, self-monitoring of drinking, designated driver tool, blood alcohol content [BAC] calculator, information) was developed. Its acceptability and associations between use and drinking outcomes were assessed. METHODS:One hundred thirty adults with unhealthy alcohol use (>14 [men]/>7 [women] drinks/week or ≥1 episode/month with 6 or more drinks) recruited in Switzerland (n = 70) and Canada (n = 60) were offered to use the application. Follow-up occurred after 3 months. Appreciation, usefulness, and self-reported frequency of use of the modules, and drinking outcomes (drinks/week, binge drinking) were assessed. Associations between application use and drinking at 3 months were evaluated with negative binomial and logistic regression models, adjusted for baseline values and gender. RESULTS:Of the participants, 48% were women, mean (SD) age: 32.8 (10.0). Follow-up rate: 86.2%. There were changes from baseline (BL) to follow-up (FU) in number of drinks/week, BL: 15.0 (16.5); FU: 10.9 (10.5), P = .01, and binge drinking, BL: 95.4%; FU: 64.3%, P < .0001. All modules had median ratings between 6 and 8 (scale of 1-10). Among the participants, 77% used the application, 76% used the personal feedback module, 41% the self-monitoring of drinking, 22% the designated driver tool, 53% the BAC calculator, and 31% the information module. Participants using the application more than once reported significantly fewer drinks/week at follow-up: Incidence Rate Ratio (IRR), number of drinks per week = 0.70 (0.51; 0.96). CONCLUSIONS: A smartphone application for unhealthy alcohol use appears acceptable and useful (although there is room for improvement). Without prompting, its use is infrequent. Those who used the application more than once reported less weekly drinking than those who did not. Efficacy of the application should be tested in a randomized trial with strategies to increase frequency of its use.
RCT Entities:
BACKGROUND: Technology-delivered interventions are useful tools for addressing unhealthy alcohol use. Smartphones in particular offer opportunities to deliver interventions at the user's convenience. A smartphone application with 5 modules (personal feedback, self-monitoring of drinking, designated driver tool, blood alcohol content [BAC] calculator, information) was developed. Its acceptability and associations between use and drinking outcomes were assessed. METHODS: One hundred thirty adults with unhealthy alcohol use (>14 [men]/>7 [women] drinks/week or ≥1 episode/month with 6 or more drinks) recruited in Switzerland (n = 70) and Canada (n = 60) were offered to use the application. Follow-up occurred after 3 months. Appreciation, usefulness, and self-reported frequency of use of the modules, and drinking outcomes (drinks/week, binge drinking) were assessed. Associations between application use and drinking at 3 months were evaluated with negative binomial and logistic regression models, adjusted for baseline values and gender. RESULTS: Of the participants, 48% were women, mean (SD) age: 32.8 (10.0). Follow-up rate: 86.2%. There were changes from baseline (BL) to follow-up (FU) in number of drinks/week, BL: 15.0 (16.5); FU: 10.9 (10.5), P = .01, and binge drinking, BL: 95.4%; FU: 64.3%, P < .0001. All modules had median ratings between 6 and 8 (scale of 1-10). Among the participants, 77% used the application, 76% used the personal feedback module, 41% the self-monitoring of drinking, 22% the designated driver tool, 53% the BAC calculator, and 31% the information module. Participants using the application more than once reported significantly fewer drinks/week at follow-up: Incidence Rate Ratio (IRR), number of drinks per week = 0.70 (0.51; 0.96). CONCLUSIONS: A smartphone application for unhealthy alcohol use appears acceptable and useful (although there is room for improvement). Without prompting, its use is infrequent. Those who used the application more than once reported less weekly drinking than those who did not. Efficacy of the application should be tested in a randomized trial with strategies to increase frequency of its use.
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