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Kuhlemeier A, Jaki T, Jimenez EY, Kong AS, Gill H, Chang C, Resnicow K, Wilson DK, Van Horn ML. Individual differences in the effects of the ACTION-PAC intervention: an application of personalized medicine in the prevention and treatment of obesity. J Behav Med 2022; 45:211-226. [PMID: 35032253 PMCID: PMC11156464 DOI: 10.1007/s10865-021-00274-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 12/14/2021] [Indexed: 10/19/2022]
Abstract
There is an increased interest in the use of personalized medicine approaches in the prevention or treatment of obesity, however, few studies have used these approaches to identify individual differences in treatment effects. The current study demonstrates the use of the predicted individual treatment effects framework to test for individual differences in the effects of the ACTION-PAC intervention, which targeted the treatment and prevention of obesity in a high school setting. We show how methods for personalized medicine can be used to test for significant individual differences in responses to an intervention and we discuss the potential and limitations of these methods. In our example, 25% of students in the preventive intervention, were predicted to have their BMI z-score reduced by 0.39 or greater, while at other end of the spectrum, 25% were predicted to have their BMI z-score increased by 0.09 or more. In this paper, we demonstrate and discuss the process of using methods for personalized medicine with interventions targeting adiposity and discuss the lessons learned from this application. Ultimately, these methods have the potential to be useful for clinicians and clients in choosing between treatment options, however they are limited in their ability to help researchers understand the mechanisms underlying these predictions.
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Affiliation(s)
- Alena Kuhlemeier
- Department of Sociology, University of New Mexico, Albuquerque, NM, USA
| | - Thomas Jaki
- Department of Mathematics and Statistics, Lancaster University, Lancaster, UK
- MRC Biostatistics Unit, University of Cambridge, Cambridge, UK
| | - Elizabeth Y Jimenez
- Division of Adolescent Health, Department of Pediatrics, University of New Mexico, Albuquerque, NM, USA
| | - Alberta S Kong
- Division of Adolescent Health, Department of Pediatrics, University of New Mexico, Albuquerque, NM, USA
| | - Hope Gill
- Department of Individual, Family, and Community Education, University of New Mexico, Albuquerque, NM, USA
| | - Chi Chang
- Office of Medical Education Research and Development, Michigan State University, East Lansing, MI, USA
| | - Ken Resnicow
- School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Dawn K Wilson
- Department of Psychology, University of South Carolina, Columbia, SC, USA
| | - M Lee Van Horn
- Department of Individual, Family, and Community Education, University of New Mexico, Albuquerque, NM, USA.
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