Select Publications

Preprints

Noma H; Furukawa TA; Tajika A; Toyomoto R; Sakata M; Luo Y; Horikoshi M; Akechi T; Kawakami N; Nakayama T; Kondo N; Fukuma S; Christensen H; Kessler RC; Cuijpers P; Wason J, 2025, RESiLIENT (Resilience Enhancement with Smartphone in LIving ENvironmenTs) Trial: The Statistical Analysis Plan for 1-year follow-up data, http://dx.doi.org/10.1101/2025.02.20.25322386

Beames JR; Dabash O; Spoelma MJ; Shvetcov A; Zheng WY; Slade A; Han J; Hoon L; Kupper JF; Parker R; Mitchell B; Martin NG; Newby JM; Whitton AE; Christensen H, 2025, The feasibility of collecting and linking multimodal data for digital mental health research: A pilot observational study involving digital phenotyping and genetics data (Preprint), http://dx.doi.org/10.2196/preprints.71377

Subotic-Kerry M; Mackinnon A; Gallen D; Baker S; Parker BL; Achilles MR; Chakouch C; Cockayne N; Christensen H; O’Dea B, 2025, Optimising the implementation of a universal web-based mental health service for Australian secondary schools: A cluster randomised controlled trial, http://dx.doi.org/10.1101/2025.02.14.25322324

Holmes G; Tang B; Gupta S; Venkatesh S; Christensen H; Whitton A, 2024, Applications of Large Language Models in the Field of Suicide Prevention: Scoping Review (Preprint), http://dx.doi.org/10.2196/preprints.63126

Zheng WY; Shvetcov A; Slade A; Jenkins Z; Hoon L; Whitton A; Logothetis R; Ravindra S; Kurniawan S; Gupta S; Huckvale K; Stech E; Agarwal A; Funke Kupper J; Cameron S; Rosenberg J; Manoglou N; Senadeera M; Venkatesh S; Mouzakis K; Vasa R; Christensen H; Newby JM, 2024, Recruiting Young People for Digital Mental Health Research: Lessons From an AI-Driven Adaptive Trial (Preprint), http://dx.doi.org/10.2196/preprints.60413

Noma H; Furukawa TA; Tajika A; Sakata M; Luo Y; Toyomoto R; Horikoshi M; Akechi T; Kawakami N; Nakayama T; Kondo N; Fukuma S; Christensen H; Kessler RC; Cuijpers P; Wason J, 2024, RESiLIENT (Resilience Enhancement with Smartphone in LIving ENvironmenTs) Trial: The Statistical Analysis Plan, http://dx.doi.org/10.1101/2024.03.16.24304261

Josifovski N; Torok M; Batterham P; Wong Q; Beames J; Theobald A; Holland S; Huckvale K; Riley J; Cockayne N; Christensen H; Larsen M, 2024, BrighterSide: A randomised controlled trial of a self-guided app for suicidal ideation (Preprint), http://dx.doi.org/10.2196/preprints.55528

O’Dea B; Li S; Subotic-Kerry M; Achilles M; Mackinnon A; Batterham P; Christensen H; Roberts A; Nagendraprasad K; Dudley Z; Gillham B; Werner-Seidler A, 2024, The MobiliseMe study: A randomised controlled efficacy trial of a cognitive behavioural therapy smartphone application (ClearlyMe®) for reducing depressive symptoms in adolescents, http://dx.doi.org/10.1101/2024.11.17.24317363

Shvetcov A; Kupper JF; Zheng W-Y; Slade A; Han J; Whitton A; Spoelma M; Hoon L; Mouzakis K; Vasa R; Gupta S; Venkatesh S; Newby J; Christensen H, 2023, Passive sensing data predicts stress in university students: A supervised machine learning method for digital phenotyping, http://dx.doi.org/10.1101/2023.07.29.23293375

Sander LB; Beisemann M; Doebler P; Micklitz HM; Kerkhof A; Cuijpers P; Batterham P; Calear A; Christensen H; De Jaegere E; Domhardt M; Erlangsen A; Eylem-van Bergeijk O; Hill R; Mühlmann C; Österle M; Pettit J; Portzky G; Steubl L; van Spijker B; Tighe J; Werner-Seidler A; Büscher R, 2023, The Effects of Internet-Based Cognitive Behavioral Therapy for Suicidal Ideation or Behaviors on Depression, Anxiety, and Hopelessness in Individuals With Suicidal Ideation: Systematic Review and Meta-Analysis of Individual Participant Data (Preprint), http://dx.doi.org/10.2196/preprints.46771

Deady M; Collins DAJ; Lavender I; Mackinnon A; Glozier N; Bryant R; Christensen H; Harvey SB, 2023, Selective Prevention of Depression in Workers Using a Smartphone App: Randomized Controlled Trial (Preprint), http://dx.doi.org/10.2196/preprints.45963

Grant JB; Batterham P; Calear A; Grant W; Christensen H, 2023, Recognising the ‘anxiogenic’ environment as a key driver of youth anxiety, http://dx.doi.org/10.31234/osf.io/jxg2t

Braund TA; O’Dea B; Bal D; Maston K; Larsen M; Werner-Seidler A; Tillman G; Christensen H, 2022, Associations Between Smartphone Keystroke Metadata and Mental Health Symptoms in Adolescents: Findings From the Future Proofing Study (Preprint), http://dx.doi.org/10.2196/preprints.44986

Shvetcov A; Whitton A; Kasturi S; Zheng W-Y; Beames J; Ibrahim O; Han J; Hoon L; Mouzakis K; Gupta S; Venkatesh S; Christensen H; Newby J, 2022, Machine learning identifies a COVID-19-specific phenotype in university students using a mental health app, http://dx.doi.org/10.1101/2022.12.07.22283234

Beames JR; Werner-Seidler A; Hodgins M; Brown L; Fujimoto H; Bartholomew A; Maston K; Huckvale K; Zbukvic I; Torok M; Christensen H; Batterham PJ; Calear AL; Lingam R; Boydell KM, 2022, Implementing a Digital Depression Prevention Program in Australian Secondary Schools: Cross-Sectional Qualitative Study (Preprint), http://dx.doi.org/10.2196/preprints.42349

Vis C; Schuurmans J; Aouizerate B; Atipei Craggs M; Batterham P; Burhmann L; Calear A; Cerga Pashoja A; Christensen H; Dozeman E; Duedal Pedersen C; Ebert DD; Etzelmueller A; Fanaj N; Finch T; Hanssen D; Hegerl U; Hoogendoorn A; Mathiasen K; May C; Meksi A; Mustafa S; O'Dea B; Oehler C; Piera-Jiménez J; Potthoff S; Qirjako G; Rapley T; Rosmalen J; Sacco Y; Samalin L; Skjoth MM; Tarp K; Titzler I; Van der Eycken E; van Genugten C; Whitton A; Zenalda E; Smit J; Riper H, 2022, Effectiveness of self-guided tailored implementation strategies in integrating and embedding Internet-based Cognitive Behavioural Therapy in routine mental health care. Results of the ImpleMentAll project. (Preprint), http://dx.doi.org/10.2196/preprints.41532

Han J; Wong I; Christensen H; Batterham PJ, 2022, Resilience To Suicidal Behaviour In Young Adults: A Cross-Sectional Study, http://dx.doi.org/10.21203/rs.3.rs-1233434/v1

Minihan S; Songco A; Andrews J; Grunewald K; Werner-Seidler A; Blakemore S-J; Christensen H; Fox E; Goodyer I; Raffe W; Schweizer S, 2022, Development of a gamified cognitive training app “Social Brain Train” to enhance adolescent mental health: a participatory design study protocol, http://dx.doi.org/10.12688/wellcomeopenres.17441.1

Reily N; Tang S; Negrone A; Gan D; Sheanoda V; Christensen H, 2022, Omega-3 supplements in the prevention and treatment of youth depression and anxiety: A scoping review, http://dx.doi.org/10.1101/2022.06.26.22276840

Huckvale K; Hoon L; Stech E; Newby J; Zheng W-Y; Han J; Vasa R; Gupta S; Barnett S; Senadeera M; Cameron S; Kurniawan S; Agarwal A; Kupper JF; Asbury J; Willie D; Grant A; Cutler H; Parkinson B; Ahumada-Canale A; Beames J; Logothetis R; Bautista M; Rosenberg J; Shvetcov A; Quinn T; Mackinnon A; Rana S; Tran T; Rosenbaum S; Mouzakis K; Werner-Seidler A; Whitton A; Venkatesh S; Christensen H, 2022, Protocol for a bandit-based response adaptive trial to evaluate the effectiveness of brief self-guided digital interventions for reducing psychological distress in university students: The Vibe Up Study, http://dx.doi.org/10.1101/2022.12.05.22283129

Werner-Seidler A; Maston K; Calear A; Batterham P; Larsen M; Torok M; O’Dea B; Huckvale K; Beames J; Brown L; Fujimoto H; Bartholomew A; Bal D; Schweizer S; Skinner R; Steinbeck K; Ratcliffe J; oei J; Venkatesh S; Lingam R; Perry Y; Hudson J; Boydell K; Mackinnon A; Christensen H, 2022, The Future Proofing Study: Design, Methods and Baseline Characteristics of a Prospective Cohort Study of the Mental Health of Australian Adolescents, http://dx.doi.org/10.31234/osf.io/x6vdj

Braund TA; Zin MT; Boonstra TW; Wong QJJ; Larsen ME; Christensen H; Tillman G; O’Dea B, 2021, Smartphone Sensor Data for Identifying and Monitoring Symptoms of Mood Disorders: A Longitudinal Observational Study (Preprint), http://dx.doi.org/10.2196/preprints.35549

Coleshill MJ; Baldwin P; Black M; Newby J; Shrestha T; Haffar S; Mills L; Stensel A; Cockayne N; Tennant J; Harvey S; Christensen H, 2021, The Essential Network (TEN): Protocol for an Implementation Study of a Digital-First Mental Health Solution for Australian Health Care Workers During COVID-19 (Preprint), http://dx.doi.org/10.2196/preprints.34601

Whitton AE; Hardy R; Cope K; Gieng C; Gow L; MacKinnon A; Gale N; O'Moore K; Anderson J; Proudfoot J; Cockayne N; O'Dea B; Christensen H; Newby JM, 2021, Mental Health Screening in General Practices as a Means for Enhancing Uptake of Digital Mental Health Interventions: Observational Cohort Study (Preprint), http://dx.doi.org/10.2196/preprints.28369

Beames J; Li S; Newby J; Maston K; Christensen H; Werner-Seidler A, 2021, The Upside: Coping and Psychological Resilience in Australian Adolescents During the COVID-19 Pandemic, http://dx.doi.org/10.21203/rs.3.rs-820688/v1

Han J; McGillivray L; Wong QJJ; Werner-Seidler A; Wong I; Calear A; Christensen H; Torok M, 2020, A Mobile Health Intervention (LifeBuoy App) to Help Young People Manage Suicidal Thoughts: Protocol for a Mixed-Methods Randomized Controlled Trial (Preprint), http://dx.doi.org/10.2196/preprints.23655

Batterham PJ; Calear AL; Sunderland M; Kay-Lambkin F; Farrer LM; Christensen H; Gulliver A, 2020, A Brief Intervention to Increase Uptake and Adherence of an Internet-Based Program for Depression and Anxiety (Enhancing Engagement With Psychosocial Interventions): Randomized Controlled Trial (Preprint), http://dx.doi.org/10.2196/preprints.23029

Beames JR; Lingam R; Boydell K; Calear AL; Torok M; Maston K; Zbukvic I; Huckvale K; Batterham PJ; Christensen H; Werner-Seidler A, 2020, Protocol for the Process Evaluation of a Complex Intervention Delivered in Schools to Prevent Adolescent Depression: The Future Proofing Study, http://dx.doi.org/10.21203/rs.3.rs-35217/v1

Sanatkar S; Baldwin P; Huckvale K; Christensen H; Harvey S, 2020, e-Mental Health Program Usage Patterns in Randomized Controlled Trials and in the General Public to Inform External Validity Considerations: Sample Groupings Using Cluster Analyses (Preprint), http://dx.doi.org/10.2196/preprints.18348

Newby J; O’Moore K; Tang S; Christensen H; Faasse K, 2020, Acute mental health responses during the COVID-19 pandemic in Australia, http://dx.doi.org/10.1101/2020.05.03.20089961

Li S; Beames J; Newby J; Maston K; Christensen H; Werner-Seidler A, 2020, The impact of COVID-19 on the lives and mental health of Australian adolescents, http://dx.doi.org/10.1101/2020.09.07.20190124

Baldwin PA; Sanatkar S; Clarke J; Fletcher S; Gunn J; Wilhelm K; Campbell L; Zwar N; Harris M; Lapsley H; Hadzi-Pavlovic D; Christensen H; Proudfoot J, 2019, A Web-Based Mental Health Intervention to Improve Social and Occupational Functioning in Adults With Type 2 Diabetes (The Springboard Trial): 12-Month Outcomes of a Randomized Controlled Trial (Preprint), http://dx.doi.org/10.2196/preprints.16729

Han J; Torok M; Gale N; Wong QJJ; Werner-Seidler A; Hetrick SE; Christensen H, 2019, Use of Web Conferencing Technology for Conducting Online Focus Groups Among Young People With Lived Experience of Suicidal Thoughts: Mixed Methods Research (Preprint), http://dx.doi.org/10.2196/preprints.14191

Tighe J; Shand F; McKay K; Mcalister T-J; Mackinnon A; Christensen H, 2019, Usage and Acceptability of the iBobbly App: Pilot Trial for Suicide Prevention in Aboriginal and Torres Strait Islander Youth (Preprint), http://dx.doi.org/10.2196/preprints.14296

Werner-Seidler A; Huckvale K; Larsen M; Calear A; Maston K; Johnston L; Torok M; O’Dea B; Batterham P; Schweizer S; Skinner R; Steinbeck K; Ratcliffe J; Oei J-L; Patton G; Wong I; Beames J; Wong Q; Lingam R; Boydell K; Salmon A; Cockayne N; Mackinnon A; Christensen H, 2019, A Trial Protocol for the Effectiveness of Digital Interventions for Preventing Depression in Adolescents: The Future Proofing Study, http://dx.doi.org/10.21203/rs.2.14135/v2

ODea B; Boonstra TW; Larsen ME; Nguyen T; Venkatesh S; Christensen H, 2018, The relationship between linguistic expression and symptoms of depression, anxiety, and suicidal thoughts: A longitudinal study of blog content, http://dx.doi.org/10.48550/arxiv.1811.02750

Clarke J; Sanatkar S; Baldwin PA; Fletcher S; Gunn J; Wilhelm K; Campbell L; Zwar N; Harris M; Lapsley H; Hadzi-Pavlovic D; Christensen H; Proudfoot J, 2018, A Web-Based Cognitive Behavior Therapy Intervention to Improve Social and Occupational Functioning in Adults With Type 2 Diabetes (The SpringboarD Trial): Randomized Controlled Trial (Preprint), http://dx.doi.org/10.2196/preprints.12246

Boonstra TW; Nicholas J; Wong QJ; Shaw F; Townsend S; Christensen H, 2018, Using mobile phone sensor technology for mental health research: Integrated analysis to identify hidden challenges and potential solutions, http://dx.doi.org/10.48550/arxiv.1805.09158

Gayed A; LaMontagne AD; Milner A; Deady M; Calvo RA; Christensen H; Mykletun A; Glozier N; Harvey SB, 2018, A New Online Mental Health Training Program for Workplace Managers: Pre-Post Pilot Study Assessing Feasibility, Usability, and Possible Effectiveness (Preprint), http://dx.doi.org/10.2196/preprints.10517

Calvo RA; Dinakar K; Picard R; Christensen H; Torous J, 2017, Toward Impactful Collaborations on Computing and Mental Health, http://dx.doi.org/10.2196/jmir.v20i2.9021

Boonstra TW; Larsen ME; Townsend S; Christensen H, 2017, Validation of a smartphone app to map social networks of proximity, http://dx.doi.org/10.48550/arxiv.1706.08777

Boonstra TW; Werner-Seidler A; O'Dea B; Larsen ME; Christensen H, 2017, Smartphone app to investigate the relationship between social connectivity and mental health, http://dx.doi.org/10.48550/arxiv.1702.02644

Townsend S; Larsen ME; Boonstra TW; Christensen H, 2015, Using Bluetooth Low Energy in smartphones to map social networks, http://dx.doi.org/10.48550/arxiv.1508.03938

Werner-Seidler A; Li SH; Spanos S; Johnston L; O' Dea B; Michelle T; Ribberband L; Newby JM; Mackinnon AJ; Christensen H, The Effects of a Sleep-Focused Smartphone Application on Insomnia and Depressive Symptoms: A Randomised Controlled Trial and Mediation Analysis, http://dx.doi.org/10.2139/ssrn.4200346

Beames J; Han J; Shvetcov A; Zheng W; Slade A; Ibrahim O; Rosenberg J; O’Dea B; Kasturi S; Hoon L; Whitton A; Christensen H; Newby JM, Use of Smartphone Sensor Data in Detecting and Predicting Depression and Anxiety in Young People (12-25 Years): A Scoping Review, http://dx.doi.org/10.2139/ssrn.4798261


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