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Kayla de la Haye, PhD
Assistant Professor of Preventive Medicine
Preventive Medicine
SSB 2001 N Soto St Health Sciences Campus Los Angeles


Kayla de la Haye is an Assistant Professor of Preventive Medicine at the University of Southern California, and specializes in applying social network analysis and systems science to health promotion and disease prevention. She has examined the spread of obesity in social networks, and produced innovative findings that peer network effects on obesity-related behaviors are important mechanisms underpinning this phenomenon. She is involved in several projects that explore how social systems influence health behaviors (diet, physical activity, substance use) in youth and families, and is working to develop interventions that enhance social networks to increase healthy behaviors and reduce disease among at-risk populations. Dr. de la Haye's is a member of the Board of Directors of the International Network of Social Network Analysis (INSNA), and is a consulting editor for Connections (the official journal of INSNA). She holds a Ph.D. in psychology from the University of Adelaide in Australia.


. Personal Network Characteristics as Predictors of Change in Obesity Risk Behaviors in Early Adolescence J Res Adolesc. 2018 May 17. View in: PubMed

. Adolescent peer networks and the moderating role of depressive symptoms on developmental trajectories of cannabis use Addict Behav. 2018 Jan; 76:34-40. View in: PubMed

. Analytic Strategies for Longitudinal Networks with Missing Data Soc Networks. 2017 Jul; 50:17-25. View in: PubMed

. Let's Move Together Health Educ Behav. 2017 Feb; 44(1):141-152. View in: PubMed

. Home visitation programs: an untapped opportunity for the delivery of early childhood obesity prevention Obes Rev. 2017 02; 18(2):149-163. View in: PubMed

. The dual role of friendship and antipathy relations in the marginalization of overweight children in their peer networks: The TRAILS Study PLoS One. 2017; 12(6):e0178130. View in: PubMed

. Longitudinal Associations of Homophobic Name-Calling Victimization With Psychological Distress and Alcohol Use During Adolescence J Adolesc Health. 2016 Jul; 59(1):110-5. View in: PubMed

. The Power of Place: Social Network Characteristics, Perceived Neighborhood Features, and Psychological Distress Among African Americans in the Historic Hill District in Pittsburgh, Pennsylvania Am J Community Psychol. 2016 09; 58(1-2):60-8. View in: PubMed

. Protocol for a randomized controlled trial testing the impact of feedback on familial risk of chronic diseases on family-level intentions to participate in preventive lifestyle behaviors BMC Public Health. 2016 09 13; 16:965. View in: PubMed

. Quantifying a Systems Map: Network Analysis of a Childhood Obesity Causal Loop Diagram PLoS One. 2016; 11(10):e0165459. View in: PubMed

. Whole of Systems Trial of Prevention Strategies for Childhood Obesity: WHO STOPS Childhood Obesity Int J Environ Res Public Health. 2016 11 16; 13(11). View in: PubMed

. Befriending Risky Peers: Factors Driving Adolescents' Selection of Friends with Similar Marijuana Use J Youth Adolesc. 2015 Oct; 44(10):1914-28. View in: PubMed

. Friendship Network Characteristics Are Associated with Physical Activity and Sedentary Behavior in Early Adolescence PLoS One. 2015; 10(12):e0145344. View in: PubMed

. A prospective study of marijuana use change and cessation among adolescents Drug Alcohol Depend. 2014 Nov 01; 144:134-40. View in: PubMed

. Predictors of parent-child relationships that support physical activity in Mexican-American families J Behav Med. 2014 Apr; 37(2):234-44. View in: PubMed

. Covariance among multiple health risk behaviors in adolescents PLoS One. 2014; 9(5):e98141. View in: PubMed

. Peer influence on marijuana use in different types of friendships J Adolesc Health. 2014 Jan; 54(1):67-73. View in: PubMed

. Re: "Are network-based interventions a useful antiobesity strategy? ". Am J Epidemiol. 2013 Sep 01; 178(5):837-8. View in: PubMed

. Selection and Influence Mechanisms Associated With Marijuana Initiation and Use in Adolescent Friendship Networks J Res Adolesc. 2013 Sep 01; 23(3). View in: PubMed

. Shared risk: who engages in substance use with American homeless youth? Addiction. 2013 Sep; 108(9):1618-24. View in: PubMed

. Response to Rice & Rhoades (2013) Addiction. 2013 Sep; 108(9):1626-7. View in: PubMed

. Peer influence and selection processes in adolescent smoking behavior: a comparative study Nicotine Tob Res. 2013 Feb; 15(2):534-41. View in: PubMed

. Neighborhood characteristics and the initiation of marijuana use and binge drinking Drug Alcohol Depend. 2013 Feb 01; 128(1-2):83-9. View in: PubMed

. J Res Adolesc. 2012 Dec 01; 22(4):604-616. View in: PubMed

. Influence of peers and friends on children's and adolescents' eating and activity behaviors Physiol Behav. 2012 Jun 06; 106(3):369-78. View in: PubMed

. Homophily and contagion as explanations for weight similarities among adolescent friends J Adolesc Health. 2011 Oct; 49(4):421-7. View in: PubMed

. How physical activity shapes, and is shaped by, adolescent friendships Soc Sci Med. 2011 Sep; 73(5):719-28. View in: PubMed

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