Digital Behavioral Insights Lab

Research

Our research examines how people make health decisions in daily life and how digital technologies can support sustained behaviour change. Key areas include obesity and cardiometabolic disease prevention, self-regulation and motivation, digital phenotyping, just-in-time adaptive interventions (JITAI), and the implementation of AI-enabled health solutions. We combine behavioral theory, clinical data, and advanced analytics to generate evidence that is both scientifically rigorous and clinically actionable.

All

2026

Self‐Regulation of Healthy Lifestyles in the Nursing Workplace: A Mixed‐Method Evaluation
John Christopher Lambino Navarro, Siti Zubaidah Mordiffi, Sky Wei Chee Koh, Han Shi Jocelyn Chew
Journal of Nursing Management  ·  01 Jan 2026  ·  doi:10.1155/jonm/2199578

2025

Just-In-Time Adaptive Interventions for Weight Management Among Adults With Excess Body Weight: Scoping Review
Jia Ying Jennell Koh, Sherman Xuanming Tan, Xue Min Tan, Celine Yu Han Tan, Soo Ling Chan, James Wai Kit Lee, Amanda Yuan Ling Lim, Weiqin Lin, Han Shi Jocelyn Chew
Journal of Medical Internet Research  ·  25 Dec 2025  ·  doi:10.2196/76625
Momentary dietary lapse prediction for obesity management: Developing the Eating Behaviour Lapse Inventory Survey Singapore (eBLISS) and a machine learning lapse prediction model
H.S.J. Chew, M. Shridhar, H. Kuang, J. Wang, M.S. Furqan
Computer Methods and Programs in Biomedicine  ·  01 Sep 2025  ·  doi:10.1016/j.cmpb.2025.108880
Waist circumference remains the better predictor of insulin resistance compared to 2025 Lancet Commission definition on clinical obesity
Han S. J. Chew, Mayank Dalakoti, Melvin K. S. Leow, Lijuan Sun, Jia H. C. Ang, Roger Foo
Diabetes, Obesity and Metabolism  ·  22 Aug 2025  ·  doi:10.1111/dom.70052
The Effectiveness of Time-Restricted Eating as an Intermittent Fasting Approach on Shift Workers’ Glucose Metabolism: A Systematic Review and Meta-Analysis
Jia Ying Jennell Koh, Celine Yu Han Tan, Meng Li, Mei Hui Liu, Han Shi Jocelyn Chew
Nutrients  ·  15 May 2025  ·  doi:10.3390/nu17101689
Just-In-Time Adaptive Interventions for Weight Management Among Adults With Excess Body Weight: Scoping Review (Preprint)
Jia Ying Jennell Koh, Sherman Xuanming Tan, Xue Min Tan, Celine Yu Han Tan, Soo Ling Chan, James Wai Kit Lee, Amanda Yuan Ling Lim, Weiqin Lin, Han Shi Jocelyn Chew
JMIR Publications Inc.  ·  28 Apr 2025  ·  doi:10.2196/preprints.76625
The roles of nurses in preventing and managing excess weight among adults: A systematic scoping review
Adika Sen, Ka Ying Annie Ho, Wei Kian Frederick Goh, Han Shi Jocelyn Chew
Nursing Outlook  ·  01 Mar 2025  ·  doi:10.1016/j.outlook.2025.102377
Digital health interventions to treat overweight and obesity in children and adolescents: An umbrella review
Tone Nygaard Flølo, Christine Tørris, Kirsti Riiser, Kari Almendingen, Han Shi Jocelyn Chew, …, Turid Kristin Bigum Sundar, Toril Margaret Sæterstrand, Astrid Torbjørnsen, Borghild Løyland, Heidi Holmen
Obesity Reviews  ·  19 Feb 2025  ·  doi:10.1111/obr.13905
Identifying Dietary Triggers Among Individuals with Overweight and Obesity: An Ecological Momentary Assessment Study
Han Shi Jocelyn Chew, Rakhi Vashishtha, Ruochen Du, Yan Xin Liaw, Ayelet Gneezy
Nutrients  ·  29 Jan 2025  ·  doi:10.3390/nu17030481
Empowering weight loss through a self-regulation app-based program on weight loss among young adults with excess body weight: A pragmatic randomized controlled trial (Preprint)
Han Shi Jocelyn Chew, Jia Wen Ngooi, Ruo Chen Du, Pin Zhong Chan, Miia Jansson, …, Roger Foo, Asim Shabbir, Dean Ho, Nick Sevdalis, Kee Yuan Ngiam
JMIR Publications Inc.  ·  27 Jan 2025  ·  doi:10.2196/preprints.71801
Nurses' Knowledge, Attitude and Practice in Nutrition Management of Hospitalised Adults: A Mixed‐Methods Study
Wei Lin Sandy Ang, Di Zhang, Huimei Cai, Han Shi Jocelyn Chew
Journal of Clinical Nursing  ·  23 Jan 2025  ·  doi:10.1111/jocn.17629

2024

AI-Based Noninvasive Blood Glucose Monitoring: Scoping Review
Pin Zhong Chan, Eric Jin, Miia Jansson, Han Shi Jocelyn Chew
Journal of Medical Internet Research  ·  19 Nov 2024  ·  doi:10.2196/58892
Correction: Effectiveness of an Artificial Intelligence-Assisted App for Improving Eating Behaviors: Mixed Methods Evaluation
Han Shi Jocelyn Chew, Nicholas WS Chew, Shaun Seh Ern Loong, Su Lin Lim, Wai San Wilson Tam, …, Georgios K Dimitriadis, Yujia Gao, Jimmy Bok Yan So, Asim Shabbir, Kee Yuan Ngiam
Journal of Medical Internet Research  ·  07 Jun 2024  ·  doi:10.2196/62767
Effects of probiotics, prebiotics and synbiotics on anthropometric, cardiometabolic and inflammatory markers: An umbrella review of meta-analyses
Yu Qing Jolene Teo, Bryan Chong, Rou Yi Soong, Cai Ling Yong, Nicholas WS. Chew, Han Shi Jocelyn Chew
Clinical Nutrition  ·  01 Jun 2024  ·  doi:10.1016/j.clnu.2024.05.019
Correction: Effectiveness of an Artificial Intelligence-Assisted App for Improving Eating Behaviors: Mixed Methods Evaluation (Preprint)
Han Shi Jocelyn Chew, Nicholas WS Chew, Shaun Seh Ern Loong, Su Lin Lim, Wai San Wilson Tam, …, Georgios K Dimitriadis, Yujia Gao, Jimmy Bok Yan So, Asim Shabbir, Kee Yuan Ngiam
JMIR Publications Inc.  ·  30 May 2024  ·  doi:10.2196/preprints.62767
N-of-1 health optimization: Digital monitoring of biomarker dynamics to gamify adherence to metabolic switching
Peter Wang, Xavier Tadeo, Han Shi Jocelyn Chew, Yoann Sapanel, Yoong Hun Ong, Nicole Yong Ting Leung, Edward Kai-Hua Chow, Dean Ho
PNAS Nexus  ·  30 May 2024  ·  doi:10.1093/pnasnexus/pgae214
Effectiveness of an Artificial Intelligence-Assisted App for Improving Eating Behaviors: Mixed Methods Evaluation
Han Shi Jocelyn Chew, Nicholas WS Chew, Shaun Seh Ern Loong, Su Lin Lim, Wai San Wilson Tam, …, Georgios K Dimitriadis, Yujia Gao, Jimmy Bok Yan So, Asim Shabbir, Kee Yuan Ngiam
Journal of Medical Internet Research  ·  07 May 2024  ·  doi:10.2196/46036
Nursing students’ readiness towards the ‘new normal’ in clinical practice: a distributed cognition qualitative perspective
Wei How Darryl Ang, Khairul Dzakirin Bin Rusli, Ying Lau, Siew Tiang Lau, Han Shi Jocelyn Chew
BMC Nursing  ·  22 Apr 2024  ·  doi:10.1186/s12912-024-01819-x
AI-Based Noninvasive Blood Glucose Monitoring: Scoping Review (Preprint)
Pin Zhong Chan, Eric Jin, Miia Jansson, Han Shi Jocelyn Chew
JMIR Publications Inc.  ·  01 Apr 2024  ·  doi:10.2196/preprints.58892
Early prediction of ventilator-associated pneumonia with machine learning models: A systematic review and meta-analysis of prediction model performance✰
Tuomas Frondelius, Irina Atkova, Jouko Miettunen, Jordi Rello, Gillian Vesty, Han Shi Jocelyn Chew, Miia Jansson
European Journal of Internal Medicine  ·  01 Mar 2024  ·  doi:10.1016/j.ejim.2023.11.009
Anthropometric and cardiometabolic effects of polyphenols in people with overweight and obesity: an umbrella review
Han Shi Jocelyn Chew, Rou Yi Soong, Yu Qing Jolene Teo, Tone Nygaard Flølo, Bryan Chong, …, Shi Han Ang, Yishen Ho, Nicholas W S Chew, Jimmy Bok Yan So, Asim Shabbir
Nutrition Reviews  ·  12 Jan 2024  ·  doi:10.1093/nutrit/nuad163
Evaluating the online Resilience Skills Enhancement programme among undergraduate students: A double‐blind parallel randomized controlled trial
Wei How Darryl Ang, Shefaly Shorey, Zhongjia James Zheng, Wai Hung Daniel Ng, Emmanuel Chih‐Wei Chen, Lubna Shah, Han Shi Jocelyn Chew, Ying Lau
Stress and Health  ·  05 Jan 2024  ·  doi:10.1002/smi.3367
Development and psychometric properties testing of the Non-Cognitive Skills Scale for nursing students
Han Shi Jocelyn Chew, Wei How Darryl Ang, Khairul Dzakirin Bin Rusli, Sok Ying Liaw, Neo Kim Emily Ang, Ying Lau
Nurse Education Today  ·  01 Jan 2024  ·  doi:10.1016/j.nedt.2023.105996

2023

Effectiveness of resilience interventions among cancer patients – A systematic review, meta-analysis, and meta-regression of randomised controlled trials
Wee Rong Ang, Wei How Darryl Ang, Swss Qynn Grace Cham, Sanjay de Mel, Han Shi Jocelyn Chew, M Kamala Devi
European Journal of Oncology Nursing  ·  01 Dec 2023  ·  doi:10.1016/j.ejon.2023.102446
Diagnostic Test Accuracy of artificial intelligence-assisted detection of acute coronary syndrome: A systematic review and meta-analysis
Pin Zhong Chan, Muhammad Aqil Irfan Bin Ramli, Han Shi Jocelyn Chew
Computers in Biology and Medicine  ·  01 Dec 2023  ·  doi:10.1016/j.compbiomed.2023.107636
The global prevalence of overweight and obesity among nurses: A systematic review and meta‐analyses
Umar Bin Sadali, Khaizuran Khairin Bin Nur Kamal, Jiyoung Park, Han Shi Jocelyn Chew, M. Kamala Devi
Journal of Clinical Nursing  ·  29 Sep 2023  ·  doi:10.1111/jocn.16861
Effects of Plant-Based Diets on Anthropometric and Cardiometabolic Markers in Adults: An Umbrella Review
Han Shi Jocelyn Chew, Felicia Kai Xin Heng, Si Ai Tien, Jie Yun Thian, Hui Shan Chou, Shaun Seh Ern Loong, Wei How Darryl Ang, Nicholas W. S. Chew, Ka-Hei Kenneth Lo
Nutrients  ·  16 May 2023  ·  doi:10.3390/nu15102331
Effectiveness of Combined Health Coaching and Self-Monitoring Apps on Weight-Related Outcomes in People With Overweight and Obesity: Systematic Review and Meta-analysis
Han Shi Jocelyn Chew, Nagadarshini Nicole Rajasegaran, Yip Han Chin, W S Nicholas Chew, Kyung Mi Kim
Journal of Medical Internet Research  ·  18 Apr 2023  ·  doi:10.2196/42432
Socio-Demographic, Behavioral and Psychological Factors Associated with High BMI among Adults in a Southeast Asian Multi-Ethnic Society: A Structural Equation Model
Han Shi Jocelyn Chew, Shaun Seh Ern Loong, Su Lin Lim, Wai San Wilson Tam, Nicholas W. S. Chew, …, Ariana M. Chao, Georgios K. Dimitriadis, Yujia Gao, Bok Yan Jimmy So, Asim Shabbir
Nutrients  ·  10 Apr 2023  ·  doi:10.3390/nu15081826
Effects of digital health interventions on the psychological outcomes of perinatal women: umbrella review of systematic reviews and meta-analyses
Ying Lau, Han Shi Jocelyn Chew, Wei How Darryl Ang, Wen Wei Ang, Chin Yi Yeo, Grace Zhi Qi Lim, Sai Ho Wong, Siew Tiang Lau, Ling Jie Cheng
Health Psychology Review  ·  15 Mar 2023  ·  doi:10.1080/17437199.2023.2185654
Effectiveness of acceptance and commitment therapy on weight, eating behaviours and psychological outcomes: a systematic review and meta-analysis
Han Shi Jocelyn Chew, Samuel Chng, Nagadarshini Nicole Rajasegaran, Khun Hean Choy, Yuen Yu Chong
Eating and Weight Disorders - Studies on Anorexia, Bulimia and Obesity  ·  10 Feb 2023  ·  doi:10.1007/s40519-023-01535-6
Effectiveness of an Artificial Intelligence-Assisted App for Improving Eating Behaviors: Mixed Methods Evaluation (Preprint)
Han Shi Jocelyn Chew, Nicholas WS Chew, Shaun Seh Ern Loong, Su Lin Lim, Wai San Wilson Tam, …, Georgios K Dimitriadish, Yujia Gao, Jimmy Bok Yan So, Asim Shabbir, Kee Yuan Ngiam
JMIR Publications Inc.  ·  26 Jan 2023  ·  doi:10.2196/preprints.46036
Barriers and Facilitators of Robot-Assisted Education in Higher Education: A Systematic Mixed-Studies Review
Hui Shan Chou, Lay Teng Thong, Han Shi Jocelyn Chew, Ying Lau
Technology, Knowledge and Learning  ·  26 Jan 2023  ·  doi:10.1007/s10758-022-09637-3
Effectiveness of interactive technology-assisted interventions on promoting healthy food choices: a scoping review and meta-analysis
Han Shi Jocelyn Chew, Nagadarshini Nicole Rajasegaran, Samuel Chng
British Journal of Nutrition  ·  25 Jan 2023  ·  doi:10.1017/S0007114523000193
Improving adult eating behaviours by manipulating time perspective: a systematic review and meta-analysis
Han Shi Jocelyn Chew, Jiayi Li, Samuel Chng
Psychology & Health  ·  24 Jan 2023  ·  doi:10.1080/08870446.2023.2169320
Essential elements of weight loss apps for a multi-ethnic population with high BMI: a qualitative study with practical recommendations
Han Shi Jocelyn Chew, Su Lin Lim, Guowei Kim, Geetha Kayambu, Bok Yan Jimmy So, Asim Shabbir, Yujia Gao
Translational Behavioral Medicine  ·  23 Jan 2023  ·  doi:10.1093/tbm/ibac090

2022

Umbrella review of time-restricted eating on weight loss, fasting blood glucose, and lipid profile
Han Shi Jocelyn Chew, Wei How Darryl Ang, Zhen Yang Abel Tan, Wen Wei Ang, Kin Sun Chan, Ying Lau
Nutrition Reviews  ·  15 Dec 2022  ·  doi:10.1093/nutrit/nuac103
Becoming More Resilient during COVID-19: Insights from a Process Evaluation of Digital Resilience Training
Wei How Darryl Ang, Han Shi Jocelyn Chew, Yew Hui Nicholas Ong, Zhongjia James Zheng, Shefaly Shorey, Ying Lau
International Journal of Environmental Research and Public Health  ·  08 Oct 2022  ·  doi:10.3390/ijerph191912899
Resilience for Undergraduate Students: Development and Evaluation of a Theory-Driven, Evidence-Based and Learner Centered Digital Resilience Skills Enhancement (RISE) Program
Wei How Darryl Ang, Shefaly Shorey, Zhongjia James Zheng, Wai Hung Daniel Ng, Emmanuel Chih-Wei Chen, Lubna Binte Iskhandar Shah, Han Shi Jocelyn Chew, Ying Lau
International Journal of Environmental Research and Public Health  ·  05 Oct 2022  ·  doi:10.3390/ijerph191912729
Effectiveness of resilience interventions for higher education students: A meta-analysis and metaregression.
Wei How Darryl Ang, Siew Tiang Lau, Ling Jie Cheng, Han Shi Jocelyn Chew, Jung Howe Tan, Shefaly Shorey, Ying Lau
Journal of Educational Psychology  ·  01 Oct 2022  ·  doi:10.1037/edu0000719
Sustainability of Weight Loss Through Smartphone Apps: Systematic Review and Meta-analysis on Anthropometric, Metabolic, and Dietary Outcomes
Han Shi Jocelyn Chew, Wee Ling Koh, Janelle Shaina Hui Yi Ng, Ker Kan Tan
Journal of Medical Internet Research  ·  21 Sep 2022  ·  doi:10.2196/40141
Effectiveness of Combined Health Coaching and Self-Monitoring Apps on Weight-Related Outcomes in People With Overweight and Obesity: Systematic Review and Meta-analysis (Preprint)
Han Shi Jocelyn Chew, Nagadarshini Nicole Rajasegaran, Yip Han Chin, W S Nicholas Chew, Kyung Mi Kim
JMIR Publications Inc.  ·  03 Sep 2022  ·  doi:10.2196/preprints.42432
Digital training for building resilience: Systematic review, meta‐analysis, and meta‐regression
Wei How Darryl Ang, Han Shi Jocelyn Chew, Jie Dong, Huso Yi, Rathi Mahendren, Ying Lau
Stress and Health  ·  28 Apr 2022  ·  doi:10.1002/smi.3154
Weight‐loss interventions for improving emotional eating among adults with high body mass index: A systematic review with meta‐analysis and meta‐regression
Han Shi Jocelyn Chew, Siew Tiang Lau, Ying Lau
European Eating Disorders Review  ·  23 Apr 2022  ·  doi:10.1002/erv.2906
Personal motivation, self-regulation barriers and strategies for weight loss in people with overweight and obesity: a thematic framework analysis
Han Shi Jocelyn Chew, Yujia Gao, Asim Shabbir, Su Lin Lim, Kayambu Geetha, Guowei Kim, Choon Seng Chong, Davide Lomanto, Bok Yan Jimmy So
Public Health Nutrition  ·  22 Feb 2022  ·  doi:10.1017/S136898002200043X
Perceptions and Needs of Artificial Intelligence in Health Care to Increase Adoption: Scoping Review
Han Shi Jocelyn Chew, Palakorn Achananuparp
Journal of Medical Internet Research  ·  14 Jan 2022  ·  doi:10.2196/32939

2021

Perceptions and Needs of Artificial Intelligence in Health Care to Increase Adoption: Scoping Review (Preprint)
Han Shi Jocelyn Chew, Palakorn Achananuparp
JMIR Publications Inc.  ·  16 Aug 2021  ·  doi:10.2196/preprints.32939
The role of artificial intelligence in enhancing clinical nursing care: A scoping review
Zi Qi Pamela Ng, Li Ying Janice Ling, Han Shi Jocelyn Chew, Ying Lau
Journal of Nursing Management  ·  13 Aug 2021  ·  doi:10.1111/jonm.13425
Generation Z undergraduate students’ resilience during the COVID-19 pandemic: a qualitative study
Wei How Darryl Ang, Shefaly Shorey, Violeta Lopez, Han Shi Jocelyn Chew, Ying Lau
Current Psychology  ·  08 Jul 2021  ·  doi:10.1007/s12144-021-01830-4
Effectiveness of a nurse-led temporal self-regulation theory-based program on heart failure self-care: A randomized controlled trial
Han Shi Jocelyn Chew, Kheng Leng David Sim, Kai Chow Choi, Sek Ying Chair
International Journal of Nursing Studies  ·  01 Mar 2021  ·  doi:10.1016/j.ijnurstu.2021.103872
COVID-19 pandemic response behaviors: a Singapore experience of the “circuit breaker”
Han Shi Jocelyn Chew, Samuel Chng
Translational Behavioral Medicine  ·  01 Mar 2021  ·  doi:10.1093/tbm/ibaa135
The potential of artificial intelligence in enhancing adult weight loss: a scoping review
Han Shi Jocelyn Chew, Wei How Darryl Ang, Ying Lau
Public Health Nutrition  ·  17 Feb 2021  ·  doi:10.1017/S1368980021000598
Global Impact of COVID-19 on Weight and Weight-Related Behaviors in the Adult Population: A Scoping Review
Han Shi Jocelyn Chew, Violeta Lopez
International Journal of Environmental Research and Public Health  ·  15 Feb 2021  ·  doi:10.3390/ijerph18041876

2020

Relationship between self-care adherence, time perspective, readiness to change and executive function in patients with heart failure
Han Shi Jocelyn Chew, Kheng Leng David Sim, Kai Chow Choi, Sek Ying Chair
Journal of Behavioral Medicine  ·  16 Jul 2020  ·  doi:10.1007/s10865-019-00080-x
The Influence of Confucianism on the Perceptions and Process of Caring Among Family Caregivers of Persons With Dementia: A Qualitative Study
Hing Cheung Yiu, Yuli Zang, Jocelyn Han Shi Chew, Janita Pak Chun Chau
Journal of Transcultural Nursing  ·  13 Feb 2020  ·  doi:10.1177/1043659620905891

2019

Self-care in Chinese heart failure patients: Gender-specific correlates
Xi Cao, Sek Ying Chair, Xiuhua Wang, Han Shi Jocelyn Chew, Ho Yu Cheng
Heart & Lung  ·  01 Nov 2019  ·  doi:10.1016/j.hrtlng.2019.05.005
Motivation, Challenges and Self-Regulation in Heart Failure Self-Care: a Theory-Driven Qualitative Study
Han Shi Jocelyn Chew, Kheng Leng David Sim, Xi Cao, Sek Ying Chair
International Journal of Behavioral Medicine  ·  09 Jul 2019  ·  doi:10.1007/s12529-019-09798-z
Using the Braden subscales to assess risk of pressure injuries in adult patients: A retrospective case‐control study
Ellene Lim, Zubaidah Mordiffi, Han S. J. Chew, Violeta Lopez
International Wound Journal  ·  07 Feb 2019  ·  doi:10.1111/iwj.13078
The suitability of motivational interviewing versus cognitive behavioural interventions on improving self-care in patients with heart failure: A literature review and discussion paper
Han Shi Jocelyn Chew, Ho Yu Cheng, Sek Ying Chair
Applied Nursing Research  ·  01 Feb 2019  ·  doi:10.1016/j.apnr.2018.11.006

2018

Difference of Radial Access and Femoral Access on Patient Outcomes in Diagnostic Cardiac Catheterization: A Quasi-Experimental Study
Xi Cao, Sui Ying Fung, Yuen Yi Lai, Sek Ying Chair, Han Shi Jocelyn Chew
Connect: The World of Critical Care Nursing  ·  01 Sep 2018  ·  doi:10.1891/1748-6254.12.3.73
Cognitive Assessment in Adult Cardiac Arrest Survivors: What Is Known and How Shall We Move Forward?
Han Shi Jocelyn Chew, Ho Yu Cheng, Xi Cao, Violeta Lopez
Connect: The World of Critical Care Nursing  ·  01 Sep 2018  ·  doi:10.1891/1748-6254.12.3.56

2017

Turning frequency in adult bedridden patients to prevent hospital‐acquired pressure ulcer: A scoping review
H‐S Jocelyn Chew, Emelia Thiara, Violeta Lopez, Shefaly Shorey
International Wound Journal  ·  15 Dec 2017  ·  doi:10.1111/iwj.12855
Empowered to Self-Care: A Photovoice Study in Patients With Heart Failure
Han Shi Jocelyn Chew, Violeta Lopez
Journal of Transcultural Nursing  ·  01 Dec 2017  ·  doi:10.1177/1043659617745138