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Efficacy of a Text Message-Based Smoking Cessation Intervention for Young People: A Cluster Randomized Controlled Trial

Efficacy of a Text Message-Based Smoking Cessation Intervention for Young People: A Cluster Randomized Controlled Trial

.08), hazardous drinking (χ2 1=4.8, P=.03), smoking status (χ2 1=13.3, P<.001), number of cigarettes smoked per day (t 753=3.6, P<.001), and age of onset of smoking (t 753

Severin Haug, Michael P Schaub, Vigeli Venzin, Christian Meyer, Ulrich John

J Med Internet Res 2013;15(8):e171

A Participatory Health Promotion Mobile App Addressing Alcohol Use Problems (The Daybreak Program): Protocol for a Randomized Controlled Trial

A Participatory Health Promotion Mobile App Addressing Alcohol Use Problems (The Daybreak Program): Protocol for a Randomized Controlled Trial

the basis of a small estimated effect size of f= 0.10 (equivalent an effect size of d=0.2) at 6 months, with a correlation between repeated measures of r=0.5, we will require 60 people per group for the main analysis based on power of 0.80 and alpha set to P&

Robert J Tait, Jessica J L Kirkman, Michael P Schaub

JMIR Res Protoc 2018;7(5):e148

A Pre-Post Study on the Appropriateness and Effectiveness of a Web- and Text Messaging-Based Intervention to Reduce Problem Drinking in Emerging Adults

A Pre-Post Study on the Appropriateness and Effectiveness of a Web- and Text Messaging-Based Intervention to Reduce Problem Drinking in Emerging Adults

Program participants had a lower level of educational attainment (U=17402.0, P<.001) and had a higher maximum number of drinks on a single occasion (U=17958.5, P=.04).After 3 months, 367 of the 477 (76.9%) students who were eligible for program participation

Severin Haug, Michael P Schaub, Vigeli Venzin, Christian Meyer, Ulrich John, Gerhard Gmel

J Med Internet Res 2013;15(9):e196

Engagement Within a Mobile Phone–Based Smoking Cessation Intervention for Adolescents and its Association With Participant Characteristics and Outcomes

Engagement Within a Mobile Phone–Based Smoking Cessation Intervention for Adolescents and its Association With Participant Characteristics and Outcomes

There were significant differences between the three clusters with regard to age (P=.006), immigrant background (P<.001), educational attainment (P=.04), binge drinking (P<.001), HAPA stage of change (P<.05), and self-perceived benefits of quitting

Raquel Paz Castro, Severin Haug, Andreas Filler, Tobias Kowatsch, Michael P Schaub

J Med Internet Res 2017;19(11):e356

A Mobile Phone-Based Life Skills Training Program for Substance Use Prevention Among Adolescents: Pre-Post Study on the Acceptance and Potential Effectiveness of the Program, Ready4life

A Mobile Phone-Based Life Skills Training Program for Substance Use Prevention Among Adolescents: Pre-Post Study on the Acceptance and Potential Effectiveness of the Program, Ready4life

A greater percentage of study participants than nonparticipants were female (χ21=5.5, P=.02) and had no migrant background (χ21=4.8, P=.03).Table 1Baseline characteristics of study participants and nonparticipants.VariableStudy participants (N=877)Nonparticipants

Severin Haug, Raquel Paz Castro, Christian Meyer, Andreas Filler, Tobias Kowatsch, Michael P Schaub

JMIR Mhealth Uhealth 2017;5(10):e143

Effects of Treatment Length and Chat-Based Counseling in a Web-Based Intervention for Cannabis Users: Randomized Factorial Trial

Effects of Treatment Length and Chat-Based Counseling in a Web-Based Intervention for Cannabis Users: Randomized Factorial Trial

.02, d=0.19), lower cannabis quantity (OR 0.99, 95%-CI: 0.98-1.00, P=.004, d=0.25), higher school education (OR 1.76, 95% CI 1.35-2.30, P<.001), and higher number of logins during program participation (OR 1.05, 95% CI 1.04-1.06, P<.001, d=0.88).

Benjamin Jonas, Marc-Dennan Tensil, Peter Tossmann, Evelin Strüber

J Med Internet Res 2018;20(5):e166

A Digital Intervention Addressing Alcohol Use Problems (the “Daybreak” Program): Quasi-Experimental Randomized Controlled Trial

A Digital Intervention Addressing Alcohol Use Problems (the “Daybreak” Program): Quasi-Experimental Randomized Controlled Trial

Attrition analysis revealed that 1-month assessments were more likely to be completed by participants who were older (t721.92= 3.67; P<.001), not single (χ23=11.467; P=.009), who used less alcohol in the 7 days prior to baseline (t786.919=–2.676; P=.008)

Robert J Tait, Raquel Paz Castro, Jessica Jane Louise Kirkman, Jamie Christopher Moore, Michael P Schaub

J Med Internet Res 2019;21(9):e14967

Data-Driven Personalization of a Physiotherapy Care Pathway: Case Study of Posture Scanning

Data-Driven Personalization of a Physiotherapy Care Pathway: Case Study of Posture Scanning

We used a storyboard to illustrate the roles of the different stakeholders and the posture scanning in the physiotherapy care pathway using a fictional persona, a health care user named Michael.

Olli Korhonen, Karin Väyrynen, Tino Krautwald, Glenn Bilby, Hedwig Anna Theresia Broers, Guido Giunti, Minna Isomursu

JMIR Rehabil Assist Technol 2020;7(2):e18508

Web-Based Cognitive Behavioral Self-Help Intervention to Reduce Cocaine Consumption in Problematic Cocaine Users: Randomized Controlled Trial

Web-Based Cognitive Behavioral Self-Help Intervention to Reduce Cocaine Consumption in Problematic Cocaine Users: Randomized Controlled Trial

Next, variables that were not significant (P ≥ .05) were systematically removed; only variables that were significant (P < .05) were retained in the model.RecruitmentThe study participants were recruited between March 2010 and October 2011 through the Snow

Michael Schaub, Robin Sullivan, Severin Haug, Lars Stark

J Med Internet Res 2012;14(6):e166