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Thomas William Valente, PhD
Professor of Preventive Medicine, Interim Chair of Preventive Medicine
Institute for Health Promotion & Disease Prevention
SSB 302W 2001 N. Soto Street Health Sciences Campus Los Angeles
+1 323 442 8238


Thomas W. Valente, PhD, is a Professor in the Department of Preventive Medicine, Institute for Prevention Research, Keck School of Medicine, University of Southern California. He is author of Social Networks and Health: Models, Methods, and Applications (2010, Oxford University Press);Evaluating Health Promotion Programs (2002, Oxford University Press); Network Models of the Diffusion of Innovations (1995, Hampton Press); and over 150 articles and chapters (as of June 2015) on social networks, behavior change, and program evaluation.Valente uses social network analysis, health communication, and mathematical models to implement and evaluate health promotion programs designed to prevent tobacco and substance abuse, unintended fertility, and STD/HIV infections. He is also engaged in mapping community coalitions and collaborations to improve health care delivery and reduce healthcare disparities.


. Interpersonal communication regarding pregnancy-related services: friends versus health professionals as conduits for information BMC Pregnancy Childbirth. 2018 Apr 12; 18(1):97. View in: PubMed

. Differences in time to injection onset by drug in California: Implications for the emerging heroin epidemic Drug Alcohol Depend. 2018 Feb 15; 185:253-259. View in: PubMed

. Structural characteristics of the online social networks of maltreated youth and offline sexual risk behavior Child Abuse Negl. 2018 Feb 07. View in: PubMed

. PrEP Chicago: A randomized controlled peer change agent intervention to promote the adoption of pre-exposure prophylaxis for HIV prevention among young Black men who have sex with men Clin Trials. 2018 Feb; 15(1):44-52. View in: PubMed

. Structural analysis of health-relevant policy-making information exchange networks in Canada Implement Sci. 2017 Sep 20; 12(1):116. View in: PubMed

. Putting the network in network interventions Proc Natl Acad Sci U S A. 2017 Sep 05; 114(36):9500-9501. View in: PubMed

. "You See Yourself Like in a Mirror": The Effects of Internet-Mediated Personal Networks on Body Image and Eating Disorders Health Commun. 2017 Jul 06; 1-11. View in: PubMed

. Overlooked Threats to Respondent Driven Sampling Estimators: Peer Recruitment Reality, Degree Measures, and Random Selection Assumption AIDS Behav. 2017 Jun 28. View in: PubMed

. Bridging Income Generation with Group Integrated Care for cardiovascular risk reduction: Rationale and design of the BIGPIC study Am Heart J. 2017 Jun; 188:175-185. View in: PubMed

. Adolescent Social Networks and Alcohol Use: Variability by Gender and Type Subst Use Misuse. 2017 Mar 21; 52(4):477-487. View in: PubMed

. An Appraisal of Social Network Theory and Analysis as Applied to Public Health: Challenges and Opportunities Annu Rev Public Health. 2017 Mar 20; 38:103-118. View in: PubMed

. Care coordination in epilepsy: Measuring neurologists' connectivity using social network analysis Epilepsy Behav. 2017 08; 73:31-35. View in: PubMed

. Popularity Breeds Contempt: The Evolution of Reputational Dislike Relations and Friendships in High School Soc Networks. 2017 Jan; 48:100-109. View in: PubMed

. An exploration of the Facebook social networks of smokers and non-smokers PLoS One. 2017; 12(11):e0187332. View in: PubMed


. Measuring sustainment of prevention programs and initiatives: a study protocol Implement Sci. 2016 Jul 16; 11:95. View in: PubMed

. Diffusion of an Evidence-Based Smoking Cessation Intervention Through Facebook: A Randomized Controlled Trial Am J Public Health. 2016 Jun; 106(6):1130-5. View in: PubMed

. Characterizing implementation strategies using a systems engineering survey and interview tool: a comparison across 10 prevention programs for drug abuse and HIV sexual risk behavior Implement Sci. 2016 May 17; 11:70. View in: PubMed

. Increases in Network Ties Are Associated With Increased Cohesion Among Intervention Participants Health Educ Behav. 2016 Apr; 43(2):208-16. View in: PubMed

. Strategies for Disseminating Information on Biomedical Research on Autism to Hispanic Parents J Autism Dev Disord. 2016 Mar; 46(3):1038-50. View in: PubMed

. A social network analysis of supportive interactions on prenatal sites Digit Health. 2016 Jan-Dec; 2:2055207616628700. View in: PubMed

. A social network analysis of supportive interactions on prenatal sites Digit Health. 2016 Jan-Dec; 2:2055207616628700. View in: PubMed

. Bridging, brokerage and betweenness Soc Networks. 2016 Jan; 44:202-208. View in: PubMed

. Hispanic/Latino Adolescents' Alcohol Use: Influence of Family Structure, Perceived Peer Norms, and Family Members' Alcohol Use Am J Health Educ. 2016; 47(4):253-261. View in: PubMed

. Three Eras in Global Tobacco Control: How Global Governance Processes Influenced Online Tobacco Control Networking Glob Health Gov. 2016; 10(2):138-150. View in: PubMed

. Diffusion of innovations theory applied to global tobacco control treaty ratification Soc Sci Med. 2015 Nov; 145:89-97. View in: PubMed

. Coevolution of Information Sharing and Implementation of Evidence-Based Practices Among North American Tobacco Cessation Quitlines Am J Public Health. 2015 Sep; 105(9):1814-22. View in: PubMed

. Electronic Cigarette Marketing Online: a Multi-Site, Multi-Product Comparison JMIR Public Health Surveill. 2015 Jul-Dec; 1(2):e11. View in: PubMed

. Place of Residence Moderates the Relationship Between Emotional Closeness and Syringe Sharing Among Injection Drug Using Clients of Sex Workers in the US-Mexico Border Region AIDS Behav. 2015 Jun; 19(6):987-95. View in: PubMed

. How different countries addressed the sudden growth of e-cigarettes in an online tobacco control community BMJ Open. 2015 May 21; 5(5):e007654. View in: PubMed

. Methods for measuring diffusion of a social media-based health intervention Soc Netw. 2015 Apr; 4(2):41-46. View in: PubMed

. "Hidden" social networks in behavior change interventions Am J Public Health. 2015 Mar; 105(3):513-6. View in: PubMed

. Peer leaders and substance use among high-risk adolescents Subst Use Misuse. 2015 Feb; 50(3):283-91. View in: PubMed

. The protective role of school friendship ties for substance use and aggressive behaviors among middle school students J Sch Health. 2015 Feb; 85(2):82-9. View in: PubMed

. A Social Network Analysis of a Coalition Initiative to Prevent Underage Drinking in Los Angeles County Proc Annu Hawaii Int Conf Syst Sci. 2015 Jan; 2015:4356-4365. View in: PubMed

. Multiplex congruity: friendship networks and perceived popularity as correlates of adolescent alcohol use Soc Sci Med. 2015 Jan; 125:173-81. View in: PubMed

. Social network analysis for program implementation PLoS One. 2015; 10(6):e0131712. View in: PubMed

. A Systematic Review of Loneliness and Smoking: Small Effects, Big Implications Subst Use Misuse. 2015; 50(13):1697-716. View in: PubMed

. It's better to give than to receive: the role of social support, trust, and participation on health-related social networking sites J Health Commun. 2014 Dec; 19(12):1424-39. View in: PubMed

. Transforming mental health services: a participatory mixed methods study to promote and evaluate the implementation of recovery-oriented services Implement Sci. 2014 Sep 10; 9:119. View in: PubMed

. Women's social communication about IUDs: a? analysis. Perspect Sex Reprod Health. 2014 Sep; 46(3):141-8. View in: PubMed

. The interplay of friendship networks and social networking sites: longitudinal analysis of selection and influence effects on adolescent smoking and alcohol use Am J Public Health. 2014 Aug; 104(8):e51-9. View in: PubMed

. Commentary--Project Towards No Drug Abuse: an evidence-based drug abuse prevention program J Prim Prev. 2014 Aug; 35(4):233-7. View in: PubMed

. The interaction of social networks and child obesity prevention program effects: the pathways trial Obesity (Silver Spring). 2014 Jun; 22(6):1520-6. View in: PubMed

. Peer influences: the impact of online and offline friendship networks on adolescent smoking and alcohol use J Adolesc Health. 2014 May; 54(5):508-14. View in: PubMed

. Influence network linkages across implementation strategy conditions in a randomized controlled trial of two strategies for scaling up evidence-based practices in public youth-serving systems Implement Sci. 2013 Nov 14; 8:133. View in: PubMed

. Alcohol peer influence of participating in organized school activities: a network approach Health Psychol. 2013 Oct; 32(10):1084-92. View in: PubMed

. Social network diagnostics: a tool for monitoring group interventions Implement Sci. 2013 Oct 01; 8:116. View in: PubMed

. The Decomposed Affiliation Exposure Model: A Network Approach to Segregating Peer Influences from Crowds and Organized Sports Netw Sci (Camb Univ Press). 2013 Aug 01; 1(2). View in: PubMed

. A computational future for preventing HIV in minority communities: how advanced technology can improve implementation of effective programs J Acquir Immune Defic Syndr. 2013 Jun 01; 63 Suppl 1:S72-84. View in: PubMed

. Hawai'i's silent epidemic: children's caries (dental decay) Hawaii J Med Public Health. 2013 Jun; 72(6):204-8. View in: PubMed

. A comparison of peer influence measures as predictors of smoking among predominately hispanic/latino high school adolescents J Adolesc Health. 2013 Mar; 52(3):358-64. View in: PubMed

. Wellness partners: design and evaluation of a web-based physical activity diary with social gaming features for adults JMIR Res Protoc. 2013 Feb 01; 2(1):e10. View in: PubMed

. Using Visualizations to Explore Network Dynamics J Soc Struct. 2013; 14. View in: PubMed

. Decomposing the components of friendship and friends' influence on adolescent drinking and smoking J Adolesc Health. 2012 Aug; 51(2):136-43. View in: PubMed

. Network interventions Science. 2012 Jul 06; 337(6090):49-53. View in: PubMed

. The effects of social networks on tobacco use among high-school adolescents in Mexico Salud Publica Mex. 2012 Jul-Aug; 54(4):433-41. View in: PubMed

. Partnerships for the design, conduct, and analysis of effectiveness, and implementation research: experiences of the prevention science and methodology group Adm Policy Ment Health. 2012 Jul; 39(4):301-16. View in: PubMed

. Social network influences on adolescent substance use: disentangling structural equivalence from cohesion Soc Sci Med. 2012 Jun; 74(12):1952-60. View in: PubMed

. Social integration in friendship networks: the synergy of network structure and peer influence in relation to cigarette smoking among high risk adolescents Soc Sci Med. 2012 May; 74(9):1407-17. View in: PubMed

. A network method of measuring affiliation-based peer influence: assessing the influences of teammates' smoking on adolescent smoking Child Dev. 2012 Mar-Apr; 83(2):442-51. View in: PubMed

. Social network influences of alcohol and marijuana cognitive associations Addict Behav. 2011 Dec; 36(12):1305-8. View in: PubMed

. The Network Autocorrelation Model using Two-mode Data: Affiliation Exposure and Potential Bias in the Autocorrelation Parameter Soc Networks. 2011 Jul 01; 33(3):231-243. View in: PubMed

. Social Network Status and Depression among Adolescents: An Examination of Social Network Influences and Depressive Symptoms in a Chinese Sample Res Hum Dev. 2011; 8(1):67-88. View in: PubMed

. The influence of health knowledge in shaping political priorities: examining HIV/AIDS knowledge and public opinion about global health and domestic policies Glob Public Health. 2011; 6(8):830-42. View in: PubMed

. Bridging: Locating Critical Connectors in a Network Soc Networks. 2010 Jul 01; 32(3):212-220. View in: PubMed

. Global tobacco control diffusion: the case of the framework convention on tobacco control Am J Public Health. 2010 Jul; 100(7):1260-6. View in: PubMed

. A network assessment of community-based participatory research: linking communities and universities to reduce cancer disparities Am J Public Health. 2010 Jul; 100(7):1319-25. View in: PubMed

. The impact of social networks on knowledge transfer in long-term care facilities: Protocol for a study Implement Sci. 2010 Jun 23; 5:49. View in: PubMed

. Place-based social network quality and correlates of substance use among urban adolescents J Adolesc. 2010 Jun; 33(3):419-27. View in: PubMed

. Evaluation of an overdose prevention and response training programme for injection drug users in the Skid Row area of Los Angeles, CA Int J Drug Policy. 2010 May; 21(3):186-93. View in: PubMed

. Future health applications of genomics: priorities for communication, behavioral, and social sciences research Am J Prev Med. 2010 May; 38(5):556-65. View in: PubMed

. The Relationship of Place to Substance use and Perceptions of Risk and Safety in Urban Adolescents J Environ Psychol. 2009 Dec 01; 29(4):485-492. View in: PubMed

. Using social networks to recruit an HIV vaccine preparedness cohort J Acquir Immune Defic Syndr. 2009 Dec 01; 52(4):514-23. View in: PubMed

. Adolescent affiliations and adiposity: a social network analysis of friendships and obesity J Adolesc Health. 2009 Aug; 45(2):202-4. View in: PubMed

. Acculturation and substance use: social influence as a mediator among Hispanic alternative high school youth J Health Soc Behav. 2009 Jun; 50(2):164-79. View in: PubMed

. Entertainment-education in a media-saturated environment: examining the impact of single and multiple exposures to breast cancer storylines on two popular medical dramas J Health Commun. 2008 Dec; 13(8):808-23. View in: PubMed

. Collaboration and competition in a children's health initiative coalition: a network analysis Eval Program Plann. 2008 Nov; 31(4):392-402. View in: PubMed

. Between tradition and change: condom use with primary sexual partners among Mexican migrants AIDS Behav. 2008 Jul; 12(4):561-9. View in: PubMed

. How Correlated Are Network Centrality Measures? Connect (Tor). 2008 Jan 01; 28(1):16-26. View in: PubMed

. Adolescent smoking networks: the effects of influence and selection on future smoking Addict Behav. 2007 Dec; 32(12):3054-9. View in: PubMed

. Identifying opinion leaders to promote behavior change Health Educ Behav. 2007 Dec; 34(6):881-96. View in: PubMed

. Network analysis of an organizational collaboration for Pacific Islander cancer control J Health Care Poor Underserved. 2007 Nov; 18(4 Suppl):184-96. View in: PubMed

. Peer acceleration: effects of a social network tailored substance abuse prevention program among high-risk adolescents Addiction. 2007 Nov; 102(11):1804-15. View in: PubMed

. Evaluating a Minor Storyline on ER About Teen Obesity, Hypertension, and 5 A Day J Health Commun. 2007 Sep; 12(6):551-66. View in: PubMed

. Perceived peer influence and peer selection on adolescent smoking Addict Behav. 2007 Aug; 32(8):1546-54. View in: PubMed

. J Health Commun. 2007 Jul-Aug; 12(5):455-69. View in: PubMed

. Differences in perceived implementation of a standard versus peer-led interactive substance abuse prevention program Am J Health Behav. 2007 May-Jun; 31(3):297-311. View in: PubMed

. Community coalitions as a system: effects of network change on adoption of evidence-based substance abuse prevention Am J Public Health. 2007 May; 97(5):880-6. View in: PubMed

. Opinion leader interventions in social networks BMJ. 2006 Nov 25; 333(7578):1082-3. View in: PubMed

. Need, demand, and external validity in dissemination of physical activity programs Am J Prev Med. 2006 Oct; 31(4 Suppl):S5-7. View in: PubMed

. Type II translation: transporting prevention interventions from research to real-world settings Eval Health Prof. 2006 Sep; 29(3):302-33. View in: PubMed

. Diffusion of innovations and network segmentation: the part played by people in promoting health Sex Transm Dis. 2006 Jul; 33(7 Suppl):S23-31. View in: PubMed

. The interaction of curriculum type and implementation method on 1-year smoking outcomes in a school-based prevention program Health Educ Res. 2006 Jun; 21(3):315-24. View in: PubMed

. Translation in the health professions: converting science into action Eval Health Prof. 2006 Mar; 29(1):7-32. View in: PubMed

. Promoting breastfeeding in Bolivia: do social networks add to the predictive value of traditional socioeconomic characteristics? J Health Popul Nutr. 2006 Mar; 24(1):71-80. View in: PubMed

. Peer influences on adolescent cigarette smoking: a theoretical review of the literature Subst Use Misuse. 2006; 41(1):103-55. View in: PubMed

. Condom use and migration in a sample of Mexican migrants: potential for HIV/STI transmission Salud Publica Mex. 2006 Jan-Feb; 48(1):57-61. View in: PubMed

. Improving preventive health services training in chiropractic colleges: a pilot impact evaluation of the introduction of a model public health curriculum J Manipulative Physiol Ther. 2005 Nov-Dec; 28(9):702-7. View in: PubMed

. J Adolesc Health. 2005 Oct; 37(4):323-9. View in: PubMed

. The selection of family planning discussion partners in Nepal J Health Commun. 2005 Sep; 10(6):519-36. View in: PubMed

. Intergenerational transfers of resources between older persons and extended kin in Taiwan and the Philippines Popul Stud (Camb). 2005 Jul; 59(2):181-95. View in: PubMed

. Writing with Ev--words to transform science into action J Health Commun. 2005 Jun; 10(4):289-302. View in: PubMed

. Impact of sexual networks on risk for gonorrhea and chlamydia among low-income urban African American adolescents J Pediatr. 2005 Apr; 146(4):518-22. View in: PubMed

. Using social networks to understand and prevent substance use: a transdisciplinary perspective Subst Use Misuse. 2004; 39(10-12):1685-712. View in: PubMed

. Characteristics of opinion leaders in substance abuse treatment agencies Am J Drug Alcohol Abuse. 2004; 30(1):187-203. View in: PubMed

. Using network analysis to understand community-based programs: a case study from highland Madagascar Int Fam Plan Perspect. 2003 Dec; 29(4):167-73. View in: PubMed

. Effects of a social-network method for group assignment strategies on peer-led tobacco prevention programs in schools Am J Public Health. 2003 Nov; 93(11):1837-43. View in: PubMed

. Diffusion of innovations Genet Med. 2003 Mar-Apr; 5(2):69. View in: PubMed

. The adoption of ablation therapy for Barrett's esophagus: a cohort study of gastroenterologists Am J Gastroenterol. 2002 Feb; 97(2):279-86. View in: PubMed

. Youth performing arts entertainment-education for HIV/AIDS prevention and health promotion: practice and research J Health Commun. 2002 Jan-Feb; 7(1):39-57. View in: PubMed

. Campaign exposure and interpersonal communication as factors in contraceptive use in Bolivia J Health Commun. 2001 Oct-Dec; 6(4):303-22. View in: PubMed

. Needle-exchange participation, effectiveness, and policy: syringe relay, gender, and the paradox of public health J Urban Health. 2001 Jun; 78(2):340-9. View in: PubMed

. Selective risk taking among needle exchange participants: implications for supplemental interventions Am J Public Health. 2001 Mar; 91(3):406-11. View in: PubMed

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