Association of Supportive Text Messaging With Health Service Utilization Costs Following Psychiatric Admission: Secondary Economic Analysis of a Stepped-Wedge Cluster Randomized Trial

Vincent Israel Opoku Agyapong   ^{1, 2} , PhD ;   Lola Ibraimova   ³ , PhD ;   Reham Shalaby   ² , PhD ;   Belinda Agyapong   ^{1, 2} , PhD ;   Wanying Mao   ² , PhD ;   Ernest Owusu   ² , PhD ;   Hossam Eldin Elgendy   ² , PhD ;   Ejemai Eboreime   ¹ , PhD ;   Peter H Silverstone   ² , PhD ;   Pierre Chue   ² , PhD ;   Wesley Vuong   ⁴ , MPH ;   Shireen Surood   ⁵ , PhD ;   Frank MacMaster   ¹ , PhD ;   Andrew J Greenshaw   ² , PhD ;   Arto Ohinmaa   ³ , PhD

¹ Department of Psychiatry, Faculty of Medicine, Dalhousie University, Halifax, NS, Canada

² Department of Psychiatry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada

³ School of Public Health, University of Alberta, Edmonton, AB, Canada

⁴ Clinical Operations Informatics Office, Health Shared Services, Edmonton, AB, Canada

⁵ Yaq̓it ʔa·knuqⱡi’it First Nation, Grasmere, BC, Canada