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Luanne Rohrbach, PhD

Title(s)Professor Of Clinical Preventive Medicine
Phone+1 323 442 8237
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    Collapse Overview 
    Collapse Overview
    Dr. Rohrbach is Assistant Professor of Research in Preventive Medicine at the Keck School of Medicine. Dr. Rohrbach conducts research on school- and community-based tobacco, alcohol, and other drug abuse prevention interventions, prediction of substance use behaviors, and theory-based evaluation of health promotion programs. Her current projects include 1) an evaluation of the California Tobacco Control Prevention and Education Program, 2) a study of gender differences in predictors of adolescent substance abuse, and 3) a study of HIV risk and protective behaviors among young women who are intravenous drug users. In the past, she has conducted research on coalitions and other community-based drug abuse prevention interventions, as well as the diffusion of effective prevention approaches. She received her B.A. in Psychology from Indiana University, her M.P.H. in Maternal and Child Health and Health Education from the University California, Los Angeles, and her Ph.D. in Health Behavior from the University of Southern California.

    Collapse Research 
    Collapse Research Activities and Funding
    Impact of Louisiana Hurricanes on Adolescent Substance Abuse
    NIH/NIDA R03DA021982Apr 15, 2006 - Mar 31, 2009
    Role: Principal Investigator
    Diffusion of Project Towards No Drug Abuse (TND)
    NIH/NIDA R01DA016090Sep 10, 2003 - May 31, 2009
    Role: Principal Investigator
    GENDER SPECIFIC DRUG ABUSE PREVENTION PROGRAMS
    NIH/NIDA R03DA010560Sep 30, 1996 - Aug 31, 1999
    Role: Principal Investigator
    DISSEMINATION OF ALCOHOL ABUSE PREVENTION PROGRAMS
    NIH/NIAAA F31AA005281Dec 27, 1988
    Role: Principal Investigator

    Collapse Bibliographic 
    Collapse Publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
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    1. Rohrbach LA, Donatello RA, Moulton BD, Afifi AA, Meyer KI, De Rosa CJ. Effectiveness Evaluation of It's Your Game: Keep It Real, a Middle School HIV/Sexually Transmitted Infection/Pregnancy Prevention Program. J Adolesc Health. 2019 Mar; 64(3):382-389. PMID: 30509768.
      View in: PubMed
    2. Tsai JY, Sussman S, Pickering TA, Rohrbach LA. Is Online Partner-Seeking Associated with Increased Risk of Condomless Sex and Sexually Transmitted Infections Among Individuals Who Engage in Heterosexual Sex? A Systematic Narrative Review. Arch Sex Behav. 2019 Feb; 48(2):533-555. PMID: 30155796.
      View in: PubMed
    3. Grigsby TJ, Forster M, Tsai J, Rohrbach LA, Sussman S. Negative Substance Use Consequences Associated With Noncondom Use Among Male, but Not Female, Alternative High School Students. J Sch Health. 2018 07; 88(7):531-537. PMID: 29864204.
      View in: PubMed
    4. Berglas NF, Hucles K, Constantine NA, Jerman P, Rohrbach LA. Predisposing, enabling and need-for-care predictors of adolescents' intention to use sexual health services. Sex Health. 2016 11; 13(6):540-548. PMID: 27509555.
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    5. Donatello RA, De Rosa CJ, Moulton BD, Chung EQ, Viola R, Rohrbach LA, Afifi AA. Patterns of Sexual Experience Among Urban Latino and African American Ninth Grade Students. J Sex Res. 2017 May -Jun; 54(4-5):619-630. PMID: 27135138.
      View in: PubMed
    6. Aelion CM, Airhihenbuwa CO, Alemagno S, Amler RW, Arnett DK, Balas A, Bertozzi S, Blakely CH, Boerwinkle E, Brandt-Rauf P, Buekens PM, Chandler GT, Chang RW, Clark JE, Cleary PD, Curran JW, Curry SJ, Diez Roux AV, Dittus R, Ellerbeck EF, El-Mohandes A, Eriksen MP, Erwin PC, Evans G, Finnegan JR, Fried LP, Frumkin H, Galea S, Goff DC, Goldman LR, Guilarte TR, Rivera-Gutiérrez R, Halverson PK, Hand GA, Harris CM, Healton CG, Hennig N, Heymann J, Hunter D, Hwang W, Jones RM, Klag MJ, Klesges LM, Lahey T, Lawlor EF, Maddock J, Martin WJ, Mazzaschi AJ, Michael M, Mohammed SD, Nasca PC, Nash D, Ogunseitan OA, Perez RA, Perri M, Petersen DJ, Peterson DV, Philbert M, Pinto-Martin J, Raczynski JM, Raskob GE, Rimer BK, Rohrbach LA, Rudkin LL, Siminoff L, Szapocznik J, Thombs D, Torabi MR, Weiler RM, Wetle TF, Williams PL, Wykoff R, Ying J. The US Cancer Moonshot initiative. Lancet Oncol. 2016 05; 17(5):e178-80. PMID: 27301041.
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    7. Rohrbach LA, Berglas NF, Jerman P, Angulo-Olaiz F, Chou CP, Constantine NA. A Rights-Based Sexuality Education Curriculum for Adolescents: 1-Year Outcomes From a Cluster-Randomized Trial. J Adolesc Health. 2015 Oct; 57(4):399-406. PMID: 26403840.
      View in: PubMed
    8. Sussman S, Pokhrel P, Sun P, Rohrbach LA, Spruijt-Metz D. Prevalence and co-occurrence of addictive behaviors among former alternative high school youth: A longitudinal follow-up study. J Behav Addict. 2015 Sep; 4(3):189-94. PMID: 26551909.
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    9. Constantine NA, Jerman P, Berglas NF, Angulo-Olaiz F, Chou CP, Rohrbach LA. Short-term effects of a rights-based sexuality education curriculum for high-school students: a cluster-randomized trial. BMC Public Health. 2015 Mar 26; 15:293. PMID: 25886554.
      View in: PubMed
    10. Nguyen-Rodriguez ST, Lisha NE, Spruijt-Metz D, Sun P, Rohrbach LA, Sussman S. Coping mediates the effects of depressive symptoms on sleep problems. Am J Health Behav. 2015 Mar; 39(2):183-90. PMID: 25564830.
      View in: PubMed
    11. Little MA, Pokhrel P, Sussman S, Rohrbach LA. The process of adoption of evidence-based tobacco use prevention programs in California schools. Prev Sci. 2015 Jan; 16(1):80-9. PMID: 24398826.
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    12. Arpawong TE, Rohrbach LA, Milam JE, Unger JB, Land H, Sun P, Spruijt-Metz D, Sussman S. Stressful Life Events and Predictors of Post-traumatic Growth among High-Risk Early Emerging Adults. J Posit Psychol. 2016 Jan 01; 11(1):1-14. PMID: 26640507.
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    13. Arpawong TE, Sussman S, Milam JE, Unger JB, Land H, Sun P, Rohrbach LA. Post-traumatic growth, stressful life events, and relationships with substance use behaviors among alternative high school students: a prospective study. Psychol Health. 2015; 30(4):475-94. PMID: 25346382.
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    14. El-Shahawy O, Sun P, Tsai JY, Rohrbach LA, Sussman S. Sense of coherence and tobacco use myths among adolescents as predictors of at-risk youth cigarette use. Subst Use Misuse. 2015 Jan; 50(1):8-14. PMID: 25262653.
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    15. Sussman S, Valente TW, Rohrbach LA, Dent CW, Sun P. Commentary--Project Towards No Drug Abuse: an evidence-based drug abuse prevention program. J Prim Prev. 2014 Aug; 35(4):233-7. PMID: 24788544.
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    16. Barnett E, Spruijt-Metz D, Moyers TB, Smith C, Rohrbach LA, Sun P, Sussman S. Bidirectional relationships between client and counselor speech: the importance of reframing. Psychol Addict Behav. 2014 Dec; 28(4):1212-9. PMID: 24955660.
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    17. Cook LT, O'Reilly GA, DeRosa CJ, Rohrbach LA, Spruijt-Metz D. Association between home availability and vegetable consumption in youth: a review. Public Health Nutr. 2015 Mar; 18(4):640-8. PMID: 24785645.
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    18. Sussman S, Arpawong TE, Sun P, Tsai J, Rohrbach LA, Spruijt-Metz D. Prevalence and co-occurrence of addictive behaviors among former alternative high school youth. J Behav Addict. 2014 Apr 01; 3(1):33-40. PMID: 24701344.
      View in: PubMed
    19. Barnett E, Moyers TB, Sussman S, Smith C, Rohrbach LA, Sun P, Spruijt-Metz D. From counselor skill to decreased marijuana use: does change talk matter? J Subst Abuse Treat. 2014 Apr; 46(4):498-505. PMID: 24462244.
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    20. Yang SL, Rohrbach LA, Daley D. Prevention, family, and community. J Food Drug Anal. 2013 Dec; 21(4):S16-S18. PMID: 25264416.
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    21. Spoth R, Rohrbach LA, Greenberg M, Leaf P, Brown CH, Fagan A, Catalano RF, Pentz MA, Sloboda Z, Hawkins JD. Addressing core challenges for the next generation of type 2 translation research and systems: the translation science to population impact (TSci Impact) framework. Prev Sci. 2013 Aug; 14(4):319-51. PMID: 23430579.
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    22. Little MA, Spruijt-Metz D, Pokhrel P, Sun P, Rohrbach LA, Sussman S. Predicting Self-Initiated Marijuana Use Cessation among Youth at Continuation High Schools. Front Psychiatry. 2013; 4:69. PMID: 23898305.
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    23. Pokhrel P, Herzog TA, Sun P, Rohrbach LA, Sussman S. Acculturation, social self-control, and substance use among Hispanic adolescents. Psychol Addict Behav. 2013 Sep; 27(3):674-86. PMID: 23772765.
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    24. Barnett E, Spruijt-Metz D, Unger JB, Rohrbach LA, Sun P, Sussman S. Bidirectional associations between future time perspective and substance use among continuation high-school students. Subst Use Misuse. 2013 Jun; 48(8):574-80. PMID: 23750661.
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    25. Sussman S, Levy D, Lich KH, Cené CW, Kim MM, Rohrbach LA, Chaloupka FJ. Comparing effects of tobacco use prevention modalities: need for complex system models. Tob Induc Dis. 2013 Jan 22; 11(1):2. PMID: 23339410.
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    26. Little MA, Sussman S, Sun P, Rohrbach LA. The Effects of Implementation Fidelity in the Towards No Drug Abuse Dissemination Trial. Health Educ (Lond). 2013; 113(4). PMID: 24386646.
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    27. Lisha NE, Grana R, Sun P, Rohrbach L, Spruijt-Metz D, Reifman A, Sussman S. Evaluation of the Psychometric Properties of the Revised Inventory of the Dimensions of Emerging Adulthood (IDEA-R) in a Sample of Continuation High School Students. Eval Health Prof. 2014 Jun; 37(2):156-77. PMID: 22786874.
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    28. Barnett E, Sussman S, Smith C, Rohrbach LA, Spruijt-Metz D. Motivational Interviewing for adolescent substance use: a review of the literature. Addict Behav. 2012 Dec; 37(12):1325-34. PMID: 22958865.
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    29. Sun P, Johnson CA, Palmer P, Arpawong TE, Unger JB, Xie B, Rohrbach LA, Spruijt-Metz D, Sussman S. Concurrent and predictive relationships between compulsive internet use and substance use: findings from vocational high school students in China and the USA. Int J Environ Res Public Health. 2012 03; 9(3):660-73. PMID: 22690154.
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    30. Barnett E, Spruijt-Metz D, Unger JB, Sun P, Rohrbach LA, Sussman S. Boosting a teen substance use prevention program with motivational interviewing. Subst Use Misuse. 2012 Mar; 47(4):418-28. PMID: 22216936.
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    31. Lisha NE, Sun P, Rohrbach LA, Spruijt-Metz D, Unger JB, Sussman S. An evaluation of immediate outcomes and fidelity of a drug abuse prevention program in continuation high schools: project towards no drug abuse (TND). J Drug Educ. 2012; 42(1):33-57. PMID: 22873013.
      View in: PubMed
    32. Sussman S, Rohrbach LA, Spruijt-Metz D, Barnett E, Lisha N, Sun P. One-year prediction of pain killer use among at-risk older teens and emerging adults. J Drug Educ. 2012; 42(2):195-210. PMID: 23185838.
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    33. Sussman S, Sun P, Rohrbach LA, Spruijt-Metz D. One-year outcomes of a drug abuse prevention program for older teens and emerging adults: evaluating a motivational interviewing booster component. Health Psychol. 2012 Jul; 31(4):476-85. PMID: 21988096.
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    34. Ringwalt C, Hanley S, Ennett ST, Vincus AA, Bowling JM, Haws SW, Rohrbach LA. The effects of No Child Left Behind on the prevalence of evidence-based drug prevention curricula in the nation's middle schools. J Sch Health. 2011 May; 81(5):265-72. PMID: 21517866.
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    35. Black DS, Sun P, Rohrbach LA, Sussman S. Decision-making style and gender moderation of the self-efficacy-condom use link among adolescents and young adults: informing targeted STI/HIV prevention programs. Arch Pediatr Adolesc Med. 2011 Apr; 165(4):320-5. PMID: 21464380.
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    36. Ennett ST, Haws S, Ringwalt CL, Vincus AA, Hanley S, Bowling JM, Rohrbach LA. Evidence-based practice in school substance use prevention: fidelity of implementation under real-world conditions. Health Educ Res. 2011 Apr; 26(2):361-71. PMID: 21382882.
      View in: PubMed
    37. Sussman S, Grana R, Pokhrel P, Rohrbach LA, Sun P. Forbidden fruit and the prediction of cigarette smoking. Subst Use Misuse. 2010 Aug; 45(10):1683-93. PMID: 20590380.
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    38. Grana RA, Black D, Sun P, Rohrbach LA, Gunning M, Sussman S. School disrepair and substance use among regular and alternative high school students. J Sch Health. 2010 Aug; 80(8):387-93. PMID: 20618621.
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    39. Black DS, Grenard JL, Sussman S, Rohrbach LA. The influence of school-based natural mentoring relationships on school attachment and subsequent adolescent risk behaviors. Health Educ Res. 2010 Oct; 25(5):892-902. PMID: 20675354.
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    40. Rohrbach LA, Sun P, Sussman S. One-year follow-up evaluation of the Project Towards No Drug Abuse (TND) dissemination trial. Prev Med. 2010 Sep-Oct; 51(3-4):313-9. PMID: 20655946.
      View in: PubMed
    41. Rohrbach LA, Gunning M, Grana R, Gunning G, Sussman S. Dissemination of Project Towards No Drug Abuse (TND): findings from a survey of program adopters. Subst Use Misuse. 2010 Dec; 45(14):2551-66. PMID: 20394506.
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    42. Rohrbach LA, Gunning M, Sun P, Sussman S. The Project Towards No Drug Abuse (TND) dissemination trial: implementation fidelity and immediate outcomes. Prev Sci. 2010 Mar; 11(1):77-88. PMID: 19757052.
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    43. Sussman S, Black DS, Rohrbach LA. A concise history of school-based smoking prevention research: a pendulum effect case study. J Drug Educ. 2010; 40(3):217-26. PMID: 21313983.
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    44. Sussman S, Moran MB, Sun P, Pokhrel P, Gunning M, Rohrbach LA, Kniazev V, Masagutov R. Peer group self-identification in samples of Russian and U.S. adolescents. J Drug Educ. 2010; 40(2):203-15. PMID: 21133332.
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    45. Hanley SM, Ringwalt C, Ennett ST, Vincus AA, Bowling JM, Haws SW, Rohrbach LA. The prevalence of evidence-based substance use prevention curricula in the nation's elementary schools. J Drug Educ. 2010; 40(1):51-60. PMID: 21038763.
      View in: PubMed
    46. Ringwalt C, Vincus AA, Ennett ST, Hanley S, Bowling JM, Yacoubian GS, Rohrbach LA. Responses to positive results from suspicionless random drug tests in US public school districts. J Sch Health. 2009 Apr; 79(4):177-83. PMID: 19292850.
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    47. Ringwalt C, Vincus AA, Hanley S, Ennett ST, Bowling JM, Rohrbach LA. The prevalence of evidence-based drug use prevention curricula in U.S. middle schools in 2005. Prev Sci. 2009 Mar; 10(1):33-40. PMID: 19002583.
      View in: PubMed
    48. Gunning M, Sussman S, Rohrbach LA, Kniazev V, Masagutov R. Concurrent predictors of cigarette and alcohol use among U.S. and Russian adolescents. J Drug Educ. 2009; 39(4):385-400. PMID: 20443454.
      View in: PubMed
    49. Sussman S, Gunning M, Lisha NE, Rohrbach LA, Kniazev V, Masagutov R. CONCURRENT PREDICTORS OF DRUG USE CONSEQUENCES AMONG U.S. AND RUSSIAN ADOLESCENTS. Salud Drogas. 2009; 9(2):129-148. PMID: 20628474.
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    50. Rohrbach LA, Grana R, Vernberg E, Sussman S, Sun P. Impact of hurricane Rita on adolescent substance use. Psychiatry. 2009; 72(3):222-37. PMID: 19821646.
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    51. Hanley S, Ringwalt C, Vincus AA, Ennett ST, Bowling JM, Haws SW, Rohrbach LA. Implementing evidence-based substance use prevention curricula with fidelity: the role of teacher training. J Drug Educ. 2009; 39(1):39-58. PMID: 19886161.
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    52. Ringwalt C, Hanley S, Vincus AA, Ennett ST, Rohrbach LA, Bowling JM. The prevalence of effective substance use prevention curricula in the nation's high schools. J Prim Prev. 2008 Nov; 29(6):479-88. PMID: 19015989.
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    53. Sun P, Sussman S, Dent CW, Rohrbach LA. One-year follow-up evaluation of Project Towards No Drug Abuse (TND-4). Prev Med. 2008 Oct; 47(4):438-42. PMID: 18675294.
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    54. Ringwalt C, Vincus AA, Ennett ST, Hanley S, Bowling JM, Yacoubian GS, Rohrbach LA. Random drug testing in US public school districts. Am J Public Health. 2008 May; 98(5):826-8. PMID: 18381986.
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    55. Pokhrel P, Sussman S, Rohrbach LA, Sun P. Prospective associations of social self-control with drug use among youth from regular and alternative high schools. Subst Abuse Treat Prev Policy. 2007 Jul 14; 2:22. PMID: 17629930.
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    56. Sussman S, Miyano J, Rohrbach LA, Dent CW, Sun P. Six-month and one-year effects of project EX-4: a classroom-based smoking prevention and cessation intervention program. Addict Behav. 2007 Dec; 32(12):3005-14. PMID: 17628346.
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    57. Rohrbach LA, Dent CW, Skara S, Sun P, Sussman S. Fidelity of implementation in Project Towards No Drug Abuse (TND): a comparison of classroom teachers and program specialists. Prev Sci. 2007 Jun; 8(2):125-32. PMID: 17180722.
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    58. Rohrbach LA, Grana R, Sussman S, Valente TW. Type II translation: transporting prevention interventions from research to real-world settings. Eval Health Prof. 2006 Sep; 29(3):302-33. PMID: 16868340.
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    59. Sun P, Miyano J, Rohrbach LA, Dent CW, Sussman S. Short-term effects of Project EX-4: a classroom-based smoking prevention and cessation intervention program. Addict Behav. 2007 Feb; 32(2):342-50. PMID: 16820267.
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    60. Pentz MA, Jasuja GK, Rohrbach LA, Sussman S, Bardo MT. Translation in tobacco and drug abuse prevention research. Eval Health Prof. 2006 Jun; 29(2):246-71. PMID: 16645186.
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    61. Sussman S, Valente TW, Rohrbach LA, Skara S, Pentz MA. Translation in the health professions: converting science into action. Eval Health Prof. 2006 Mar; 29(1):7-32. PMID: 16510878.
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    62. Sussman S, Unger J, Rohrbach LA, Johnson CA. School-based smoking prevention research. J Adolesc Health. 2005 Jul; 37(1):4; author reply 6-8. PMID: 15963896.
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    63. Rohrbach LA, Ringwalt CL, Ennett ST, Vincus AA. Factors associated with adoption of evidence-based substance use prevention curricula in US school districts. Health Educ Res. 2005 Oct; 20(5):514-26. PMID: 15687101.
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    64. Skara S, Rohrbach LA, Sun P, Sussman S. An evaluation of the fidelity of implementation of a school-based drug abuse prevention program: project toward no drug abuse (TND). J Drug Educ. 2005; 35(4):305-29. PMID: 16910242.
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    65. Biglan M, Gilpin EA, Rohrbach LA, Pierce JP. Is there a simple correction factor for comparing adolescent tobacco-use estimates from school- and home-based surveys? Nicotine Tob Res. 2004 Jun; 6(3):427-37. PMID: 15203776.
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    66. Ringwalt CL, Vincus A, Ennett S, Johnson R, Rohrbach LA. Reasons for teachers' adaptation of substance use prevention curricula in schools with non-white student populations. Prev Sci. 2004 Mar; 5(1):61-7. PMID: 15058914.
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    67. Mouttapa M, Valente T, Gallaher P, Rohrbach LA, Unger JB. Social network predictors of bullying and victimization. Adolescence. 2004; 39(154):315-35. PMID: 15563041.
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    68. Pentz MA, Mares D, Schinke S, Rohrbach LA. Political science, public policy, and drug use prevention. Subst Use Misuse. 2004; 39(10-12):1821-65. PMID: 15587952.
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    69. Ringwalt C, Ennett ST, Vincus AA, Rohrbach LA, Simons-Rudolph A. Who's calling the shots? Decision-makers and the adoption of effective school-based substance use prevention curricula. J Drug Educ. 2004; 34(1):19-31. PMID: 15468745.
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    70. Unger JB, Shakib S, Cruz TB, Hoffman BR, Pitney BH, Rohrbach LA. Smoking behavior among urban and rural Native American adolescents in California. Am J Prev Med. 2003 Oct; 25(3):251-4. PMID: 14507533.
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    71. Ringwalt CL, Ennett S, Johnson R, Rohrbach LA, Simons-Rudolph A, Vincus A, Thorne J. Factors associated with fidelity to substance use prevention curriculum guides in the nation's middle schools. Health Educ Behav. 2003 Jun; 30(3):375-91. PMID: 19731502.
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    72. Simons-Rudolph AP, Ennett ST, Ringwalt CL, Rohrbach LA, Vincus AA, Johnson RE. The principles of effectiveness: early awareness and plans for implementation in a national sample of public schools and their districts. J Sch Health. 2003 May; 73(5):181-5. PMID: 12793103.
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    73. Ennett ST, Ringwalt CL, Thorne J, Rohrbach LA, Vincus A, Simons-Rudolph A, Jones S. A comparison of current practice in school-based substance use prevention programs with meta-analysis findings. Prev Sci. 2003 Mar; 4(1):1-14. PMID: 12611415.
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    74. Harvey SM, Bird ST, De Rosa CJ, Montgomery SB, Rohrbach LA. Sexual decision making and safer sex behavior among young female injection drug users and female partners of IDUs. J Sex Res. 2003 Feb; 40(1):50-60. PMID: 12806531.
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    75. Sussman S, Rohrbach LA, Patel R, Holiday K. A look at an interactive classroom-based drug abuse prevention program: interactive contents and suggestions for research. J Drug Educ. 2003; 33(4):355-68. PMID: 15237862.
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    76. Li C, Unger JB, Schuster D, Rohrbach LA, Howard-Pitney B, Norman G. Youths' exposure to environmental tobacco smoke (ETS): associations with health beliefs and social pressure. Addict Behav. 2003 Jan-Feb; 28(1):39-53. PMID: 12507526.
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    77. Ringwalt CL, Ennett S, Vincus A, Thorne J, Rohrbach LA, Simons-Rudolph A. The prevalence of effective substance use prevention curricula in U.S. middle schools. Prev Sci. 2002 Dec; 3(4):257-65. PMID: 12458764.
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    78. Rohrbach LA, Howard-Pitney B, Unger JB, Dent CW, Howard KA, Cruz TB, Ribisl KM, Norman GJ, Fishbein H, Johnson CA. Independent evaluation of the California Tobacco Control Program: relationships between program exposure and outcomes, 1996-1998. Am J Public Health. 2002 Jun; 92(6):975-83. PMID: 12036792.
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    79. Unger JB, Yan L, Shakib S, Rohrbach LA, Chen X, Qian G, Chou CP, Jianguo S, Azen S, Zheng H, Johnson CA. Peer influences and access to cigarettes as correlates of adolescent smoking: a cross-cultural comparison of Wuhan, China, and California. Prev Med. 2002 Apr; 34(4):476-84. PMID: 11914054.
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    80. Montgomery SB, Hyde J, De Rosa CJ, Rohrbach LA, Ennett S, Harvey SM, Clatts M, Iverson E, Kipke MD. Gender differences in HIV risk behaviors among young injectors and their social network members. Am J Drug Alcohol Abuse. 2002; 28(3):453-75. PMID: 12211360.
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    81. Unger JB, Rohrbach LA, Ribisl KM. Are adolescents attempting to buy cigarettes on the internet? Tob Control. 2001 Dec; 10(4):360-3. PMID: 11740028.
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    82. Howard KA, Ribisl KM, Howard-Pitney B, Norman GJ, Rohrbach LA. What factors are associated with local enforcement of laws banning illegal tobacco sales to minors? A study of 182 law enforcement agencies in California. Prev Med. 2001 Aug; 33(2 Pt 1):63-70. PMID: 11493037.
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    83. Unger JB, Rohrbach LA, Cruz TB, Baezconde-Garbanati L, Howard KA, Palmer PH, Johnson CA. Ethnic variation in peer influences on adolescent smoking. Nicotine Tob Res. 2001 May; 3(2):167-76. PMID: 11403731.
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    84. Unger JB, Rohrbach LA, Howard-Pitney B, Ritt-Olson A, Mouttapa M. Peer influences and susceptibility to smoking among California adolescents. Subst Use Misuse. 2001 Apr; 36(5):551-71. PMID: 11419487.
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    85. Huang TT, Unger JB, Rohrbach LA. Exposure to, and perceived usefulness of, school-based tobacco prevention programs: associations with susceptibility to smoking among adolescents. J Adolesc Health. 2000 Oct; 27(4):248-54. PMID: 11008087.
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    86. Unger JB, Cruz TB, Rohrbach LA, Ribisl KM, Baezconde-Garbanati L, Chen X, Trinidad DR, Johnson CA. English language use as a risk factor for smoking initiation among Hispanic and Asian American adolescents: evidence for mediation by tobacco-related beliefs and social norms. Health Psychol. 2000 Sep; 19(5):403-10. PMID: 11007148.
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    87. Unger JB, Palmer PH, Dent CW, Rohrbach LA, Johnson CA. Ethnic differences in adolescent smoking prevalence in California: are multi-ethnic youth at higher risk? Tob Control. 2000; 9 Suppl 2:II9-14. PMID: 10841586.
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    88. Unger JB, Rohrbach LA, Howard KA, Boley Cruz T, Johnson CA, Chen X. Attitudes toward anti-tobacco policy among California youth: associations with smoking status, psychosocial variables and advocacy actions. Health Educ Res. 1999 Dec; 14(6):751-63. PMID: 10585383.
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    89. Chou CP, Montgomery S, Pentz MA, Rohrbach LA, Johnson CA, Flay BR, MacKinnon DP. Effects of a community-based prevention program on decreasing drug use in high-risk adolescents. Am J Public Health. 1998 Jun; 88(6):944-8. PMID: 9618626.
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    90. Unger JB, Johnson CA, Rohrbach LA. Recognition and liking of tobacco and alcohol advertisements among adolescents: relationships with susceptibility to substance use. Prev Med. 1995 Sep; 24(5):461-6. PMID: 8524720.
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    91. Rohrbach LA, Graham JW, Hansen WB. Diffusion of a school-based substance abuse prevention program: predictors of program implementation. Prev Med. 1993 Mar; 22(2):237-60. PMID: 8483862.
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