Association Between User Interaction and Treatment Response of a Voice-Based Coach for Treating Depression and Anxiety: Secondary Analysis of a Pilot Randomized Controlled Trial

Nan Lv   ^{1 *} , PhD ;   Thomas Kannampallil   ^{2, 3 *} , PhD ;   Lan Xiao   ⁴ , PhD ;   Corina R Ronneberg   ¹ , PhD ;   Vikas Kumar   ¹ , MS ;   Nancy E Wittels   ¹ , MS ;   Olusola A Ajilore   ⁵ , MD, PhD ;   Joshua M Smyth   ^{6 *} , PhD ;   Jun Ma   ^{1 *} , MD, PhD

¹ Department of Medicine, University of Illinois Chicago, Chicago, IL, United States

² Department of Anesthesiology, Washington University, St. Louis, MO, United States

³ Institute for Informatics, Washington University, St. Louis, MO, United States

⁴ Department of Epidemiology and Population Health, Stanford University, Stanford, CA, United States

⁵ Department of Psychiatry, University of Illinois Chicago, Chicago, IL, United States

⁶ Department of Psychology, The Ohio State University, Columbus, OH, United States

*these authors contributed equally