case studies

Quantitative Research

related journal articles

Test4HepC: Promoting Hepatitis C Testing to Baby Boomers Using Social Media

Plant A, Snow EG, Montoya JA, Young S, Javanbakht M, Klausner JD. Health Promotion Practice. 2020;21(5):780-790.

Mobile App Increases Vegetable-Based Preparations by Low-Income Household Cooks: A Randomized Controlled Trial.

Clarke P, Evans SH, Neffa-Creech D. Public Health Nutrition. 2019;22(4):714-725.

Associations Between Sexting Behaviors and Sexual Behaviors Among Mobile Phone-Owning Teens in Los Angeles.


Rice E, Craddock J, Hemler M, Rusow J, Plant A, Montoya J, Kordic T. Child Development. 2018;89(1):110-117.

Effects of a brief video intervention on treatment initiation and adherence among patients attending human immunodeficiency virus treatment clinics

Neumann MS, Plant A, Margolis AD, Borkowf CB, Malotte CK, Rietmeijer CA, Flores SA, O’Donnell L, Robilotto S, Myint-U A, Montoya JA, Javanbakht M, Klausner JD. PLoS One. 2018;13(10):e0204599.

The Break Up: Evaluation of an Anti-Smoking Educational Campaign for Lesbians, Gays, and Bisexuals in Los Angeles County.


Plant A, Montoya JA, Tyree R, Aragon L, Weber M, Le Veque M, Anderson CM, Soler RE, Kent C. Journal of Health Communication. 2017;22(1):29-36.

Brief Report: PrEP Uptake, Adherence, and Discontinuation Among California YMSM Using Geosocial Networking Applications.

Holloway I, Dougherty R, Gildner J, Beougher SC, Pulsipher C, Montoya JA, Plant A, Leibowitz A. Journal of Acquired Immune Deficiency Syndromes. 2017 1;74(1):15-20.

Facilitators and Barriers to Pre-Exposure Prophylaxis Willingness Among Young Men Who Have Sex with Men Who Use Geosocial Networking Applications in California.


Holloway IW, Tan D, Gildner JL, Beougher SC, Pulsipher C, Montoya JA, Plant A, Leibowitz A. AIDS Patient Care and STDS. 2017;(12):517-527.

Syphilis Experiences and Risk Perceptions Among Repeatedly Infected Men Who Have Sex with Men.


Plant A, Stahlman S, Javanbakht M, Cross J, Montoya JA, Bolan R, Kerndt PR. Perspectives on Sexual and Reproductive Health. 2015;47(4):181-6.

Cell Phone Internet Access, Online Sexual Solicitation, Partner Seeking, and Sexual Risk Behavior Among Adolescents.


Rice E, Winetrobe H, Holloway IW, Montoya J, Plant A, Kordic T. Archives of Sexual Behavior. 2015;44(3):755-63.

Homelessness and Sexual Identity Among Middle School Students.


Rice E, Petering R, Rhoades H, Barman-Adhikari A, Winetrobe H, Plant A, Montoya J, Kordic T. Journal of School Health. 2015;85(8):552-7.

Cyberbullying Perpetration and Victimization Among Middle-School Students.


Rice E, Petering R, Rhoades H, Winetrobe H, Goldbach J, Plant A, Montoya J, Kordic T. American Journal of Public Health. 2015;105(3):e66-72.

Check Yourself: A Social Marketing Campaign to Increase Syphilis Screening in Los Angeles County.


Plant A, Javanbakht M, Montoya JA, Rotblatt H, O’Leary C, Kerndt PR. Sexually Transmitted Diseases. 2014;41(1):50-57.

Sexting and Sexual Behavior Among Middle School Students.


Rice E, Gibbs J, Winetrobe H, Rhoades H, Plant A, Montoya J, Kordic T. Pediatrics. 2014;134(1):e21-28.

There’s No Place Like Home: First Year Usage of the “I Know” Home Testing Program for Chlamydia and Gonorrhea.


Rotblatt H, Montoya JA, Plant A, Guerry S, Kerndt P. American Journal of Public Health. 2013;103(8):1376-1380.

Homelessness Experiences, Sexual Orientation, and Sexual Risk Taking Among High School Students in Los Angeles.


Rice E, Rhoades H, Winetrobe H, Sanchez M, Montoya JA, Plant A, Kordic T. Journal of Adolescent Health. 2013;52(6):773-778.

Sexually Explicit Cell Phone Messaging Associated with Sexual Risk Among Adolescents.


Rice E, Rhoades H, Winetrobe H, Sanchez M, Montoya JA, Plant A, Kordic T. Pediatrics. 2012;130(4):667-673.

Evaluation of inSPOTLA.org: An Internet Partner Notification Service.


Plant A, Rotblatt H, Montoya JA, Rudy E, Kerndt PK. Sexually Transmitted Diseases. 2012;39(5):341-345.

Desired Attributes and Skills of Program Managers in Translation of Evidence-Based Interventions.


Williams R, Woodell C, McCarville E, Damitz M, Banks T, Montoya J, Lesch JK, Peretz P, Lara M. Health Promotion Practice. 2011;12(1):82S-90S.

Outcomes from a Cross-Site Evaluation of a Comprehensive Pediatric Asthma Initiative Incorporating Translation of Evidence-Based Interventions.


Mansfield C, Viswanathan M, Woodell C, Nourani V, Ohadike YU, Lesch JK, Malveaux FJ, Bryant-Stephens T, Findley S, Lara M, Matiz A, Valencia GR, Rosenthal M, Persky VW, Uyeda K, Williams R, Banda E, Ramirez-Diaz E, Reyes BM, Montoya J, West C. Health Promotion Practice. 2011;12(6 Suppl 1):34S-51S.

Stop the Sores: The Making and Evaluation of a Successful Social Marketing Campaign.


Plant A, Montoya JA, Rotblatt H, Mall KL, Pappas LG, Kent CK, Klausner JD, Kerndt PR. Health Promotion Practice. 2010;11(1)L:23-33.

The Bold and the Bankable: How the Nuestro Barrio Telenovela Reaches Latino Immigrants with Financial Education

Spader J, Ratcliffe J, Montoya J, Skillern P. Journal of Consumer Affairs. 2009; 43(1):56-79.

Methamphetamine Use and Sexual Risk Behaviours Among Men Who Have Sex with Men Diagnosed with Early Syphilis in Los Angeles County.


Taylor MM, Aynalem G, Smith LV, Montoya J, Kerndt P. International Journal of STDs & AIDS. 2007;18(2):93-97.

Circuit Parties: Sexual Behaviors and Disclosure Practices at the White Party, Palm Springs, California, 2003.


Patel P, Taylor M, Montoya JA, Hamburger ME, Kerndt P, Holmberg SD. AIDS Care. 2006;18(8):1046-1049.

Healthy Penis: San Francisco’s Social Marketing Campaign to Increase Syphilis Testing Among Gay and Bisexual Men.

Ahrens K, Kent CK, Montoya JA, Rotblatt H, McCright J, Kerndt P, Klausner J. PLoS Medicine. 2006;12: e474.

Social Marketing Campaign Significantly Associated With Increases in Syphilis Testing Among Gay and Bisexual Men in San Francisco.


Montoya JA, Kent C, Rotblatt H, Kerndt P, Klausner J. Sexually Transmitted Diseases. 2005;32(7):395-399.

HIV Transmission in the Adult Film Industry – Los Angeles, California, 2004.

Rotblatt H, Montoya JA, Kerndt PR, Kim-Farley R, Fielding J, Daar E, Bustamante T, Bernard B, Brooks JT, Kalish MM, Robbins K, Kenney K, Laubacher L, Taylor M. CDC Morbidity and Mortality Weekly Report. 2005;54(37):923-926.

Interventions in the Commercial Sex Industry During the Rise in Syphilis Rates Among Men Who Have Sex with Men (MSM).

Taylor M, Montoya JA, Cantrell R, Mitchell SJ, Williams M, Jordahl L, Freeman M, Brown J, Broussard D, Roland E. Sexually Transmitted Diseases. 2005;32(10 Suppl):S53-S59.

related presentations

Outcomes of a Gun Violence Prevention-Education Program in the Los Angeles Unified School District.

Plant A, Montoya J, Kordic T. Presented at: American Public Health Association (APHA) Annual Meeting; November 10-14, 2018; San Diego, CA.

Acceptability of a Brief Entertainment-Education Video Intervention to Prevent STIs and Unintended Pregnancies Among Older Adolescents.

Plant A, Walter N, Murphy S, Montoya J, Rietmeijer C. Presented at: 2018 STD Prevention Conference; August 27-30, 2018; Washington DC.

Using Social Media to Promote Hepatitis C Testing to Baby Boomers.

Snow E, Plant A, Montoya J, Young S, Kimble M, Gordon K, Castrejon M, Klausner K. Presented at: American Public Health Association (APHA) Annual Meeting; November 4-8, 2017; Atlanta, GA.

Factors of Successful Linkage and Retention to HIV Care in a National HIV Testing and Linkage Program.

Montoya J, Plant A, Chien M, Gorre M, Mizuno L, McGrath M, Engeran-Cordova W. Presented at: 2016 STD Prevention Conference; September 20-23, 2016; Atlanta, GA.

PrEP Awareness, Attitudes and Uptake Among Racially/Ethnically Diverse Young Men Who Have Sex with Men in California.

Pulsipher C, Holloway IW, Gildner J, Beougher S, Curtis P, Plant A, Montoya J, Leibowitz A. Presented at: AIDS 2016 – International AIDS Conference; July 18-22, 2016; Durban, South Africa.

Where’s Daryl?: Results of a Gun Violence Prevention-Education Program in Los Angeles Unified School District.

Kordic T, Plant A, Ruffino E, Amatullo M, Moon M,Lamb K. Presented at: 142th American Public Health Association (APHA) Annual Meeting; November 15-19, 2014; New Orleans, LA.

“Spring Into Love:” Impact of a Youth-Led Summit on Sexual Health and Healthy Relationships for High Schools Students in a High-Risk Community in South Los Angeles.

Lamb K, Provost J, Cantu M, Gaarde J, Bush-Spurlin J, Jackson MD, Greene B, Kerndt PR. Presented at: 2014 STD Prevention Conference; June 9-12, 2014; Atlanta, GA.

Authentic and Meaningful Community Engagement to Reduce STD Disparities: Lessons Learned from the 4-Site CDC CARS Initiative.

Rhodes SD, Daniel-Ulloa J, Montoya JA, Beale D, Cruz-Dillard K, Kerndt P, CARS Workgroup. Presented at: 2014 STD Prevention Conference; June 9-12, 2014; Atlanta, GA

High School Student Sexting Associated with Sexual Risk Behavior.

Rhoades H, Rice E, Winetrobe H, Sanchez M, Montoya J, Plant A, Kordic T. Presented at: 140th American Public Health Association (APHA) Annual Meeting; October 27-31, 2012; San Francisco, CA.

Online Sexual Solicitation and Partner Seeking in Relation to Sex Risk Behavior Among Adolescents.

Winetrobe H, Rice E, Holloway I, Montoya JA, Plant A, Kordic T. Presented at: 140th American Public Health Association (APHA) Annual Meeting; October 27-31, 2012; San Francisco, CA.

Grindr and Other Geosocial Networking Applications: Advent of a Novel, High-Risk Sexual Market Place.

Rudy E, Beymer M, Aynalem G, Rodriguez J, Plant A, Bolan R, Kerndt P. Presented at: National STD Prevention Conference; March 12-15, 2012; Minneapolis, MN.

There’s No Place Like Home: Second-Year Report on the “I Know” Chlamydia and Gonorrhea Home Test Kit Program for Women in Los Angeles County.

Rotblatt H, Montoya JA, Plant A, Copeland J, Guerry S, Kerndt PR. Presented at: National STD Prevention Conference; March 12-15, 2012; Minneapolis, MN.

Check Yourself: Community Response to a Syphilis Social Marketing Campaign for Men Who Have Sex with Men.

Plant A, Rotblatt H, Montoya J, O’Leary C, Kerndt P. Presented at: National STD Prevention Conference; March 8-11, 2010; Atlanta, GA.

Effects of inSPOTLA.org Promotion Efforts: Paid Advertising Compared to Free Media Exposure.

Rotblatt H, Plant A, Montoya JA, Ruiz A, Mares-DelGrasso A, Levine DK, Kerndt PR. Presented at: 18th International Society for Sexually Transmitted Diseases Research (ISSTDR) Conference; June 28-July 1, 2009; London, UK.

Internet Partner Notification Efforts in Los Angeles County.

Plant A, Rotblatt H, Ramirez F, Melgoza M, Wagner T, Utley J, Rudy E, Kerndt PR. Presented at: 18th International Society for Sexually Transmitted Diseases Research (ISSTDR) Conference; June 28-July 1, 2009; London, UK.

Testing Behavior and Perceived Risk for Syphilis in a Time-Space Sample of Men Who Have Sex with Men.

Plant A, Montoya JA, Rotblatt H, O’Leary CM, Kerndt PR. Presented at: National STD Prevention Conference; March 10-13, 2008; Chicago, IL.

Using Choice-Based Conjoint Exercise to Assess Self-Reported Serosorting Among Men Who Have Sex with Men (MSM) Cruising the Internet for Sex.

Montoya JA, Plant A, Rotblatt H, Kerndt PR. Presented at: National STD Prevention Conference; March 10-13, 2008; Chicago, IL.

Between Idea and Act Falls the Shadow: Discrepancies Between STD Testing Attitudes and Behavior in a Survey of Young African American and Latina Women.

Rotblatt H, O’Leary CM, Montoya JA, Plant A, Kerndt PR. Presented at: National STD Prevention Conference; March 10-13, 2008; Chicago, IL.

Impact of a Hip-Hop Radio Outreach Collaboration to Promote Chlamydia and Gonorrhea Testing among Youth in L.A. County.

Rotblatt H, Boudov M, Mercado C, Montoya JA, Plant A, O’Leary CM, Kerndt PR. Presented at: National STD Prevention Conference; March 10-13, 2008; Chicago, IL.

Pilot Segmentation of Gay and Bisexual Men in Los Angeles: Sexual Practice Attitudes, Values, and Beliefs.

Montoya JA, Rotblatt H, Kent C, Plant A, Javanbakht M, Kerndt PR. Presented at: National STD Prevention Conference; May 8-10, 2006; Jacksonville, FL.

Evaluation of “Stop the Sores”: A Successful Social Marketing Campaign for Syphilis Elimination Among Men Who Have Sex with Men, Los Angeles County, 2004.

Plant A, Montoya JA, Rotblatt H, Kent CK, Mall K, Kerndt PR. Presented at: National STD Prevention Conference; May 8-10, 2006; Jacksonville, FL.

Evaluation of Healthy Penis 2004.

Ahrens K, Kent CK, McCright J, Montoya JA, Plant A, Klausner JD. Presented at: National STD Prevention Conference; May 8-10, 2006; Jacksonville, FL.

Choice-Based Conjoint: A New Methodological Approach to Assess Sexual Practices and Decision Making Among Men Who Have Sex with Men (MSM) Cruising the Internet for Sex.

Montoya JA, Plant A, Kerndt PR. Presented at: National STD Prevention Conference; May 8-10, 2006; Jacksonville, FL.