Keck School Faculty

Junhan Cho

Junhan Cho

Assistant Professor of Research Population and Public Health Sciences
SSB 2001 N. Soto Street Health Sciences Campus Los Angeles

Associations of alternative cannabis product use and poly-use with subsequent illicit drug use initiation during adolescence Psychopharmacology (Berl). 2023 Mar 03. . View in PubMed

Hispanic/Latinos and non-Hispanic whites' childhood cancer survivors and parents: a dyadic analysis of coping resources and mental health J Cancer Surviv. 2023 Feb 28. . View in PubMed

Regular Cannabis Use During the First Year of the Pandemic: Studying Trajectories Rather Than Prevalence Am J Prev Med. 2023 Feb 18. . View in PubMed

Barriers and facilitators of Hispanic/Latino parents caregiving for a childhood cancer survivor: a qualitative study Cancer Causes Control. 2023 Feb; 34(2):151-160. . View in PubMed

Willingness to Use Commercial Nicotine Gums, Lozenges, and Gummies Among Nontobacco Using Adolescents in Southern California J Adolesc Health. 2023 02; 72(2):277-286. . View in PubMed

Prevalence of and disparities in adolescents' susceptibility to novel oral nicotine products marketed as "tobacco-free" Prev Med. 2023 01; 166:107387. . View in PubMed

Associations between anxiety symptoms and barriers to smoking cessation among African Americans who smoke cigarettes daily Drug Alcohol Depend. 2023 04 01; 245:109808. . View in PubMed

Differences in intention to use flavored oral nicotine products among young adult e-cigarette users and non-users Prev Med Rep. 2022 Dec; 30:102027. . View in PubMed

A genetic association study of tobacco withdrawal endophenotypes in African Americans Exp Clin Psychopharmacol. 2022 Oct; 30(5):673-681. . View in PubMed

Alcohol use trajectories among US. adults during the first 42 weeks of the COVID-19 pandemic. Alcohol Clin Exp Res. 2022 06; 46(6):1062-1072. . View in PubMed

The Impact of Hispanic Ethnicity and Language on Communication Among Young Adult Childhood Cancer Survivors, Parents, and Medical Providers and Cancer-Related Follow-Up Care JCO Oncol Pract. 2022 05; 18(5):e786-e796. . View in PubMed

Longitudinal trajectories of prescription opioid misuse in adolescents Drug Alcohol Depend. 2022 07 01; 236:109470. . View in PubMed

Motivations for E-cigarette use and associations with vaping frequency and smoking abstinence among adults who smoke cigarettes in the United States Drug Alcohol Depend. 2022 09 01; 238:109583. . View in PubMed

Adolescent Use of Flavored Non-Tobacco Oral Nicotine Products Pediatrics. 2022 09 01; 150(3). . View in PubMed

Digital media use and suicidal behavior in US. adolescents, 2009-2017. Prev Med Rep. 2021 Sep; 23:101497. . View in PubMed

Adolescent emotional disorder symptoms and transdiagnostic vulnerabilities as predictors of young adult substance use during the COVID-19 pandemic: mediation by substance-related coping behaviors Cogn Behav Ther. 2021 May-Jul; 50(4):276-294. . View in PubMed

Social facilitation of alcohol subjective effects in adolescents: Associations with subsequent alcohol use Psychopharmacology (Berl). 2021 Mar; 238(3):887-897. . View in PubMed

Pathways linking adverse environments to emerging adults' substance abuse and depressive symptoms: A prospective analysis of rural African American men Dev Psychopathol. 2021 10; 33(4):1496-1506. . View in PubMed

Distress tolerance and subsequent substance use throughout high school Addict Behav. 2021 09; 120:106983. . View in PubMed

Behavioral Health Risk Factors for Nonmedical Prescription Opioid Use in Adolescence Pediatrics. 2021 09; 148(3). . View in PubMed

Tobacco and cannabis poly-substance and poly-product use trajectories across adolescence and young adulthood Prev Med. 2021 07; 148:106545. . View in PubMed

Developmental patterns of tobacco product and cannabis use initiation in high school Addiction. 2021 02; 116(2):382-393. . View in PubMed

Retail Marketing of Menthol Cigarettes in Los Angeles, California: a Challenge to Health Equity Prev Chronic Dis. 2021 02 11; 18:E11. . View in PubMed

Nicotine dependence symptoms in US. youth who use JUUL E-cigarettes. Drug Alcohol Depend. 2021 10 01; 227:108941. . View in PubMed

Drug and alcohol dependence acute effects of pod-style e-cigarettes in vaping-naïve smokers Drug Alcohol Depend. 2021 11 01; 228:109083. . View in PubMed

The association of type of cannabis product used and frequency of use with problematic cannabis use in a sample of young adult cannabis users Drug Alcohol Depend. 2021 09 01; 226:108865. . View in PubMed

Association of Political Party Affiliation With Physical Distancing Among Young Adults During the COVID-19 Pandemic JAMA Intern Med. 2021 03 01; 181(3):399-403. . View in PubMed

Pathways linking childhood trauma to rural, unmarried, African American father involvement through oxytocin receptor gene methylation Dev Psychol. 2020 Aug; 56(8):1496-1508. . View in PubMed

Sex differences in the appeal of flavored e-cigarettes among young adult e-cigarette users Psychol Addict Behav. 2020 Mar; 34(2):303-307. . View in PubMed

Sensory attributes of e-cigarette flavours and nicotine as mediators of interproduct differences in appeal among young adults Tob Control. 2020 11; 29(6):679-686. . View in PubMed

E-cigarette Product Characteristics and Subsequent Frequency of Cigarette Smoking Pediatrics. 2020 05; 145(5). . View in PubMed

Prevalence of Electronic Cigarette Dependence Among Youth and Its Association With Future Use JAMA Netw Open. 2020 02 05; 3(2):e1921513. . View in PubMed

Trajectories of Nicotine and Cannabis Vaping and Polyuse From Adolescence to Young Adulthood JAMA Netw Open. 2020 10 01; 3(10):e2019181. . View in PubMed

Digital media use and subsequent cannabis and tobacco product use initiation among adolescents Drug Alcohol Depend. 2020 07 01; 212:108017. . View in PubMed

Risk of Persistence and Progression of Use of 5 Cannabis Products After Experimentation Among Adolescents JAMA Netw Open. 2020 01 03; 3(1):e1919792. . View in PubMed

Sexual minority tobacco use disparities across adolescence and the transition to young adulthood Drug Alcohol Depend. 2020 12 01; 217:108298. . View in PubMed

Young adult e-cigarette use: A latent class analysis of device and flavor use, 2018-2019 Drug Alcohol Depend. 2020 11 01; 216:108258. . View in PubMed

Assessment of Nicotine and Cannabis Vaping and Respiratory Symptoms in Young Adults JAMA Netw Open. 2020 12 01; 3(12):e2030189. . View in PubMed

Association of Nonmedical Prescription Opioid Use With Subsequent Heroin Use Initiation in Adolescents JAMA Pediatr. 2019 Sep 01; 173(9):e191750. . View in PubMed

Multilevel Interaction Effects of Family and Community Factors on Mothers' Engagement in Evidence-Based Home Visiting Fam Community Health. 2019 Jul/Sep; 42(3):203-212. . View in PubMed

Identification of Some New Triply Periodic Mesophases from Molten Block Copolymers Polymers (Basel). 2019 Jun 25; 11(6). . View in PubMed

Anhedonia as a phenotypic marker of familial transmission of polysubstance use trajectories across midadolescence Psychol Addict Behav. 2019 Feb; 33(1):15-25. . View in PubMed

Past 30-day co-use of tobacco and marijuana products among adolescents and young adults in California Addict Behav. 2019 11; 98:106053. . View in PubMed

Association of Cyberbullying Involvement With Subsequent Substance Use Among Adolescents J Adolesc Health. 2019 11; 65(5):613-620. . View in PubMed

Flavored E-cigarette Use and Progression of Vaping in Adolescents Pediatrics. 2019 11; 144(5). . View in PubMed

Childhood Adversity, Socioeconomic Instability, Oxytocin-Receptor-Gene Methylation, and Romantic-Relationship Support Among Young African American Men Psychol Sci. 2019 08; 30(8):1234-1244. . View in PubMed

Poly-product drug use disparities in adolescents of lower socioeconomic status: Emerging trends in nicotine products, marijuana products, and prescription drugs Behav Res Ther. 2019 04; 115:103-110. . View in PubMed

Prevalence of Tanning Addiction and Behavioral Health Conditions among Ethnically and Racially Diverse Adolescents J Invest Dermatol. 2018 07; 138(7):1511-1517. . View in PubMed

Longitudinal Associations Between Anhedonia and Body Mass Index Trajectory Groups Among Adolescents J Adolesc Health. 2018 07; 63(1):81-87. . View in PubMed

Diminished alternative reinforcement as a mechanism linking conduct problems and substance use in adolescence: a longitudinal examination Addiction. 2018 06; 113(6):1139-1148. . View in PubMed

Developmental Pathways from Parental Socioeconomic Status to Adolescent Substance Use: Alternative and Complementary Reinforcement J Youth Adolesc. 2018 02; 47(2):334-348. . View in PubMed

Association of Digital Media Use With Subsequent Symptoms of Attention-Deficit/Hyperactivity Disorder Among Adolescents JAMA. 2018 07 17; 320(3):255-263. . View in PubMed

Characterizing Polytobacco Use Trajectories and Their Associations With Substance Use and Mental Health Across Mid-Adolescence Nicotine Tob Res. 2018 08 14; 20(suppl_1):S31-S38. . View in PubMed

Association of Reported Concern About Increasing Societal Discrimination With Adverse Behavioral Health Outcomes in Late Adolescence JAMA Pediatr. 2018 10 01; 172(10):924-933. . View in PubMed

Oxytocin receptor gene methylation and substance use problems among young African American men Drug Alcohol Depend. 2018 11 01; 192:309-315. . View in PubMed

Associations between anhedonia and marijuana use escalation across mid-adolescence Addiction. 2017 Dec; 112(12):2182-2190. . View in PubMed

The Influence of Community Disadvantage and Masculinity Ideology on Number of Sexual Partners: A Prospective Analysis of Young Adult, Rural Black Men J Sex Res. 2017 Jul-Aug; 54(6):795-801. . View in PubMed

The influence of substance use on depressive symptoms among young adult black men: The sensitizing effect of early adversity Am J Addict. 2017 Jun; 26(4):400-406. . View in PubMed

Pathways to HIV-Related Behavior Among Heterosexual, Rural Black Men: A Person-Centered Analysis Arch Sex Behav. 2017 May; 46(4):913-924. . View in PubMed

Pathways linking marijuana use to substance use problems among emerging adults: A prospective analysis of young Black men Addict Behav. 2017 09; 72:86-92. . View in PubMed

Development and Validation of the Masculine Attributes Questionnaire Am J Mens Health. 2017 07; 11(4):941-951. . View in PubMed

Condom Use in the Context of Main and Casual Partner Concurrency: Individual and Relationship Predictors in a Sample of Heterosexual African American Men Am J Mens Health. 2017 05; 11(3):585-591. . View in PubMed

Genetic moderation of transactional relations between parenting practices and child self-regulation J Fam Psychol. 2016 Oct; 30(7):780-790. . View in PubMed

Parent and youth dopamine D4 receptor genotypes moderate multilevel contextual effects on rural African American youth's risk behavior Dev Psychopathol. 2016 May; 28(2):433-45. . View in PubMed

The Influence of Childhood Adversity on Rural Black Men's Sexual Risk Behavior Ann Behav Med. 2016 12; 50(6):813-822. . View in PubMed

Risk and Protective Processes Predicting Rural African American Young Men's Substance Abuse Am J Community Psychol. 2016 12; 58(3-4):422-433. . View in PubMed

Father Involvement and Young, Rural African American Men's Engagement in Substance Misuse and Multiple Sexual Partnerships Am J Community Psychol. 2015 Dec; 56(3-4):241-51. . View in PubMed

Correlates of Concurrent Sexual Partnerships Among Young, Rural African American Men Public Health Rep. 2015 Jul-Aug; 130(4):392-9. . View in PubMed

Pubertal timing and sexual risk behaviors among rural African American male youth: testing a model based on life history theory Arch Sex Behav. 2015 Apr; 44(3):609-18. . View in PubMed

Avoiding adolescent pregnancy: a longitudinal analysis of African-American youth J Adolesc Health. 2013 Jul; 53(1):14-20. . View in PubMed

Dr. Junhan Cho is an Assistant Professor of Research in the Department of Preventive Medicine in the Keck School of Medicine at the University of Southern California. He is the Director of Methodology and Statistics for the USC-Health, Emotion, & Addiction Laboratory (USC-HEAL), which conducts interdisciplinary research on mental health problems and health-related behaviors. With a strong interest to develop advanced research methodologies, Dr. Cho's research aims to address how diverse social contexts and psychological vulnerabilities intersect to increase risk of addictive behaviors. Based on his research background on Human Development and Family Science throughout master and doctoral programs, his studies incorporate both theoretical and methodological frameworks necessary to conducting longitudinal and prevention studies on youth health risk behaviors with a focus on the psychosocial processes influenced by family and community contexts. His current studies include: 1) developmental patterns of conjoint multiple health risk behaviors; 2) longitudinal risk and protective pathways linking early contextual stressors to mental health problems in adolescence; and 3) interaction of social contexts and biological factors influencing psychological vulnerability to addictive behaviors including substance use across adolescence and young adulthood.
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