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Predrag Klasnja, PhD

TitleSenior Investigator
InstitutionKaiser Permanente Washington
DepartmentHealth Research Institute
ORCID ORCID Icon0000-0002-4570-703X Additional info
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    Collapse Overview 
    Collapse overview
    Predrag Klasnja, PhD, studies ways in which mobile-health (mHealth) interventions can help individuals develop healthy habits and sustain them over the long-term. To achieve these goals, Dr. Klasnja develops and evaluates mHealth tools intended to keep people engaged with their health goals, discover opportunities for healthy behavior they can do in their current situation, and reflect on their behavior patterns to identify ways to improve their health without disrupting relationships and routines that are important to them.

    A key requirement for achieving these goals is that mHealth interventions can be optimized — that they are designed to provide the right types of support, at the right times, and in the right contexts to maximize intended benefits while minimizing burden on the individuals that use them. In his recent work, Dr. Klasnja has been collaborating with colleagues at the University of Michigan and Arizona State to develop methods for efficient design and optimization of mobile-health technologies.

    While health management often happens away from the clinic, it shouldn't happen in isolation from health care providers. A second focus of Dr. Klasnja’s work is the use of technology to help individuals more effectively communicate with their health care teams. Dr. Klasnja studies how patients can use technology to manage information for their care and selectively share information with their care teams to help them make better treatment decisions.

    Dr. Klasnja’s projects span a range of health domains, including heart disease, obesity, physical activity, and substance use. His current projects are examining the use of mobile technology to support lifestyle modification after bariatric surgery, assess contextual factors related to substance use, promote smoking cessation, and support physical-activity maintenance following cardiac rehabilitation.

    Collapse Bibliographic 
    Collapse selected publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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    1. Green BB, Anderson ML, Campbell J, Cook AJ, Ehrlich K, Evers S, Hall YN, Hsu C, Joseph D, Klasnja P, Margolis KL, McClure JB, Munson SA, Thompson MJ. Blood pressure checks and diagnosing hypertension (BP-CHECK): Design and methods of a randomized controlled diagnostic study comparing clinic, home, kiosk, and 24-hour ambulatory BP monitoring. Contemp Clin Trials. 2019 Apr; 79:1-13. PMID: 30634036.
      View in: PubMed
    2. Luers B, Klasnja P, Murphy S. Standardized Effect Sizes for Preventive Mobile Health Interventions in Micro-randomized Trials. Prev Sci. 2019 Jan; 20(1):100-109. PMID: 29318443.
      View in: PubMed
    3. Liao P, Dempsey W, Sarker H, Hossain SM, Al'absi M, Klasnja P, Murphy S. Just-in-Time but Not Too Much: Determining Treatment Timing in Mobile Health. Proc ACM Interact Mob Wearable Ubiquitous Technol. 2018 Dec; 2(4). PMID: 30801052.
      View in: PubMed
    4. Klasnja P, Smith S, Seewald NJ, Lee A, Hall K, Luers B, Hekler EB, Murphy SA. Efficacy of Contextually Tailored Suggestions for Physical Activity: A Micro-randomized Optimization Trial of HeartSteps. Ann Behav Med. 2018 Sep 05. PMID: 30192907.
      View in: PubMed
    5. Rabbi M, Philyaw Kotov M, Cunningham R, Bonar EE, Nahum-Shani I, Klasnja P, Walton M, Murphy S. Toward Increasing Engagement in Substance Use Data Collection: Development of the Substance Abuse Research Assistant App and Protocol for a Microrandomized Trial Using Adolescents and Emerging Adults. JMIR Res Protoc. 2018 Jul 18; 7(7):e166. PMID: 30021714.
      View in: PubMed
    6. Hekler EB, Rivera DE, Martin CA, Phatak SS, Freigoun MT, Korinek E, Klasnja P, Adams MA, Buman MP. Tutorial for Using Control Systems Engineering to Optimize Adaptive Mobile Health Interventions. J Med Internet Res. 2018 Jun 28; 20(6):e214. PMID: 29954725.
      View in: PubMed
    7. Klasnja P, Hekler EB. Rethinking Evaluations Of mHealth Systems For Behavior Change. GetMobile. 2018 Jun; 22(2):11-14. PMID: 30680312.
      View in: PubMed
    8. Lewis CC, Klasnja P, Powell BJ, Lyon AR, Tuzzio L, Jones S, Walsh-Bailey C, Weiner B. From Classification to Causality: Advancing Understanding of Mechanisms of Change in Implementation Science. Front Public Health. 2018; 6:136. PMID: 29868544.
      View in: PubMed
    9. Walton A, Nahum-Shani I, Crosby L, Klasnja P, Murphy S. Optimizing Digital Integrated Care via Micro-Randomized Trials. Clin Pharmacol Ther. 2018 Jul; 104(1):53-58. PMID: 29604043.
      View in: PubMed
    10. Phatak SS, Freigoun MT, Martín CA, Rivera DE, Korinek EV, Adams MA, Buman MP, Klasnja P, Hekler EB. Modeling individual differences: A case study of the application of system identification for personalizing a physical activity intervention. J Biomed Inform. 2018 03; 79:82-97. PMID: 29409750.
      View in: PubMed
    11. Greenewald K, Tewari A, Klasnja P, Murphy S. Action Centered Contextual Bandits. Adv Neural Inf Process Syst. 2017 Dec; 30:5973-5981. PMID: 29225449.
      View in: PubMed
    12. Rabbi M, Philyaw-Kotov M, Lee J, Mansour A, Dent L, Wang X, Cunningham R, Bonar E, Nahum-Shani I, Klasnja P, Walton M, Murphy S. SARA: A Mobile App to Engage Users in Health Data Collection. Proc ACM Int Conf Ubiquitous Comput. 2017 Sep; 2017:781-789. PMID: 29503985.
      View in: PubMed
    13. Klasnja P, Hekler EB, Korinek EV, Harlow J, Mishra SR. Toward Usable Evidence: Optimizing Knowledge Accumulation in HCI Research on Health Behavior Change. Proc SIGCHI Conf Hum Factor Comput Syst. 2017 May; 2017:3071-3082. PMID: 30272059.
      View in: PubMed
    14. McClure JB, Heffner J, Hohl S, Klasnja P, Catz SL. Design Considerations for mHealth Programs Targeting Smokers Not Yet Ready to Quit: Results of a Sequential Mixed-Methods Study. JMIR Mhealth Uhealth. 2017 Mar 10; 5(3):e31. PMID: 28283465.
      View in: PubMed
    15. Klasnja P, Hekler EB. Wearable Technology and Long-term Weight Loss. JAMA. 2017 01 17; 317(3):317-318. PMID: 28114544.
      View in: PubMed
    16. Barbarin AM, Klasnja P, Veinot TC. Good or bad, ups and downs, and getting better: Use of personal health data for temporal reflection in chronic illness. Int J Med Inform. 2016 10; 94:237-45. PMID: 27573332.
      View in: PubMed
    17. Hekler EB, Klasnja P, Riley WT, Buman MP, Huberty J, Rivera DE, Martin CA. Agile science: creating useful products for behavior change in the real world. Transl Behav Med. 2016 06; 6(2):317-28. PMID: 27357001.
      View in: PubMed
    18. Liao P, Klasnja P, Tewari A, Murphy SA. Sample size calculations for micro-randomized trials in mHealth. Stat Med. 2016 05 30; 35(12):1944-71. PMID: 26707831.
      View in: PubMed
    19. Dempsey W, Liao P, Klasnja P, Nahum-Shani I, Murphy SA. Randomised trials for the Fitbit generation. Signif (Oxf). 2015 Dec 01; 12(6):20-23. PMID: 26807137.
      View in: PubMed
    20. Klasnja P, Hekler EB, Shiffman S, Boruvka A, Almirall D, Tewari A, Murphy SA. Microrandomized trials: An experimental design for developing just-in-time adaptive interventions. Health Psychol. 2015 Dec; 34S:1220-8. PMID: 26651463.
      View in: PubMed
    21. Klasnja P, Kendall L, Pratt W, Blondon K. Long-Term Engagement with Health-Management Technology: a Dynamic Process in Diabetes. AMIA Annu Symp Proc. 2015; 2015:756-65. PMID: 26958211.
      View in: PubMed
    22. Flynn AJ, Klasnja P, Friedman CP. MedMinify: An Advice-giving System for Simplifying the Schedules of Daily Home Medication Regimens Used to Treat Chronic Conditions. AMIA Annu Symp Proc. 2014; 2014:1728-37. PMID: 25954445.
      View in: PubMed
    23. Blondon K, Klasnja P, Coleman K, Pratt W. An exploration of attitudes toward the use of patient incentives to support diabetes self-management. Psychol Health. 2014; 29(5):552-63. PMID: 24256342.
      View in: PubMed
    24. Kendall L, Klasnja P, Iwasaki J, Best JA, White AA, Khalaj S, Amdahl C, Blondon K. Use of simulated physician handoffs to study cross-cover chart biopsy in the electronic medical record. AMIA Annu Symp Proc. 2013; 2013:766-75. PMID: 24551374.
      View in: PubMed
    25. Hekler EB, Klasnja P, Traver V, Hendriks M. Realizing effective behavioral management of health: the metamorphosis of behavioral science methods. IEEE Pulse. 2013 Sep; 4(5):29-34. PMID: 24056791.
      View in: PubMed
    26. Patel RA, Klasnja P, Hartzler A, Unruh KT, Pratt W. Probing the benefits of real-time tracking during cancer care. AMIA Annu Symp Proc. 2012; 2012:1340-9. PMID: 23304413.
      View in: PubMed
    27. Hartzler A, Skeels MM, Mukai M, Powell C, Klasnja P, Pratt W. Sharing is caring, but not error free: transparency of granular controls for sharing personal health information in social networks. AMIA Annu Symp Proc. 2011; 2011:559-68. PMID: 22195111.
      View in: PubMed
    28. Klasnja P, Hartzler A, Powell C, Pratt W. Supporting cancer patients' unanchored health information management with mobile technology. AMIA Annu Symp Proc. 2011; 2011:732-41. PMID: 22195130.
      View in: PubMed
    29. Klasnja P, Pratt W. Healthcare in the pocket: mapping the space of mobile-phone health interventions. J Biomed Inform. 2012 Feb; 45(1):184-98. PMID: 21925288.
      View in: PubMed
    30. Klasnja P, Hartzler A, Powell C, Phan G, Pratt W. Health Weaver Mobile: Designing a Mobile Tool for Managing Personal Health Information during Cancer Care. AMIA Annu Symp Proc. 2010 Nov 13; 2010:392-6. PMID: 21347007.
      View in: PubMed
    31. Klasnja P, Hartzler AC, Unruh KT, Pratt W. Blowing in the Wind: Unanchored Patient Information Work during Cancer Care. Proc SIGCHI Conf Hum Factor Comput Syst. 2010 04; 2010:193-202. PMID: 20697453.
      View in: PubMed
    32. Klasnja P, Consolvo S, McDonald DW, Landay JA, Pratt W. Using mobile & personal sensing technologies to support health behavior change in everyday life: lessons learned. AMIA Annu Symp Proc. 2009 Nov 14; 2009:338-42. PMID: 20351876.
      View in: PubMed
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