Ryan Assaf, PhD, MPH

Title(s)Postdoctoral Scholar, Medicine
SchoolSchool of Medicine
Address1001 Potrero Avenue, #Suite 40
San Francisco CA 94110
ORCID ORCID Icon0000-0002-6651-1765 Additional info
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    Collapse Biography 
    Collapse Education and Training
    University of California, San Francisco, San Francisco, CAPostdoctoral research fellowship
    University of California, Los Angeles, Los Angeles, CAPhD06/2022Epidemiology
    University of California, Los Angeles, Los Angeles, CAMPH03/2019Epidemiology
    University of California, Irvine, Irvine, CABS12/2016Public Health Science

    Collapse Overview 
    Collapse Overview
    I am a postdoctoral fellow with the Benioff Homelessness and Housing Initiative under the Center for Vulnerable Populations. I am formally trained in epidemiology with research interests in social and behavioral epidemiology, HIV/STIs, substance use, and sexual and gender minority health. My current research focuses on homelessness and housing, the intersection with infectious diseases and substance use, and how policy, environmental, and community factors affect housing.

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    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. to make corrections and additions.
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    Altmetrics Details PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. Social Care Education and Training Among US Pediatric Emergency Medicine Fellowship Programs. Pediatr Emerg Care. 2024 Apr 02. Assaf RR, Assaf RD, Doucet HB, Graff D. PMID: 38563810.
      View in: PubMed   Mentions:    Fields:    
    2. Examining Factors Associated with Cannabis Use Among Sexual and Gender Minority and Cisgender Heterosexual Emerging Adults in California. LGBT Health. 2024 Feb 01. Jauregui JC, Hong C, Assaf RD, Cunningham NJ, Krueger EA, Flynn R, Holloway IW. PMID: 38301143.
      View in: PubMed   Mentions:    Fields:    
    3. Associations of U.S. state-level COVID-19 policies intensity with cannabis sharing behaviors in 2020. Res Sq. 2023 Aug 02. Assaf RD, Hamad R, Javanbakht M, Arah OA, Shoptaw SJ, Cooper ZD, Gorbach PM. PMID: 37577641; PMCID: PMC10418562.
      View in: PubMed   Mentions:
    4. Novel Location-Based Survey Using Cognitive Interviews to Assess Geographic Networks and Hotspots of Sex and Drug Use: Implementation and Validation Study. JMIR Form Res. 2023 Jun 22; 7:e45188. Reid SC, Wang V, Assaf RD, Kaloper S, Murray AT, Shoptaw S, Gorbach P, Cassels S. PMID: 37347520; PMCID: PMC10337421.
      View in: PubMed   Mentions:
    5. Cannabis Use and Sharing Practices Among Sexual Minority and Heterosexual Individuals During the COVID-19 Pandemic. LGBT Health. 2023 10; 10(7):514-525. Assaf RD, Javanbakht M, Gorbach PM, Cooper ZD. PMID: 37252794; PMCID: PMC10552144.
      View in: PubMed   Mentions:    Fields:    Translation:HumansAnimalsPHPublic Health
    6. Puff, Puff, Don't Pass: harm reduction for cannabis use during a viral respiratory pandemic. Harm Reduct J. 2023 02 25; 20(1):23. Assaf RD, Javanbakht M, Gorbach PM, Arah OA, Shoptaw SJ, Cooper ZD. PMID: 36829150; PMCID: PMC9957690.
      View in: PubMed   Mentions: 2     Fields:    Translation:HumansAnimalsPHPublic Health
    7. Pediatric emergency department organization and social care practices among U.S. fellowship programs. AEM Educ Train. 2022 Aug; 6(4). Assaf RR, Assaf RD, Barber Doucet H, Graff D. PMID: 35982713; PMCID: PMC9366751.
      View in: PubMed   Mentions:
    8. Evolving Primary Care Utilization of Transgender and Gender-Nonconforming People at a Community Sexual Health Clinic. Transgend Health. 2022 Aug; 7(4):340-347. Jann JT, Cunningham NJ, Assaf RD, Krysiak RC, Herman D. PMID: 36033210; PMCID: PMC9398480.
      View in: PubMed   Mentions: 1  
    9. Changes in secondary substance use after the onset of the COVID-19 pandemic among people who use cannabis: Findings from a web-based sample of adults in the United States. Exp Clin Psychopharmacol. 2023 Apr; 31(2):482-490. Lake S, Assaf RD, Gorbach PM, Cooper ZD. PMID: 35467920; PMCID: PMC9592680.
      View in: PubMed   Mentions:    Fields:    Translation:HumansAnimalsPHPublic Health
    10. Social care practices and perspectives among U.S. pediatric emergency medicine fellowship programs. AEM Educ Train. 2022 Apr; 6(2):e10737. Assaf RR, Barber Doucet H, Assaf RD, Graff D. PMID: 35493290; PMCID: PMC9045575.
      View in: PubMed   Mentions: 2  
    11. High proportions of rectal and pharyngeal chlamydia and gonorrhoea cases among cisgender men are missed using current CDC screening recommendations. Sex Transm Infect. 2022 12; 98(8):586-591. Assaf RD, Cunningham NJ, Adamson PC, Jann JT, Bolan RK. PMID: 35217590; PMCID: PMC9402804.
      View in: PubMed   Mentions:    Fields:    Translation:HumansCellsPHPublic Health
    12. Changes in medical and non-medical cannabis use among United States adults before and during the COVID-19 pandemic. Am J Drug Alcohol Abuse. 2022 05 04; 48(3):321-327. Assaf RD, Gorbach PM, Cooper ZD. PMID: 35130464; PMCID: PMC9308664.
      View in: PubMed   Mentions: 5     Fields:    Translation:HumansAnimalsCellsPHPublic Health
    13. Selective Changes in Medical Cannabis Use Early in the COVID-19 Pandemic: Findings from a Web-Based Sample of Adults in the United States. Cannabis Cannabinoid Res. 2023 02; 8(1):174-183. Lake S, Assaf RD, Gorbach PM, Cooper ZD. PMID: 35073161; PMCID: PMC9940798.
      View in: PubMed   Mentions: 4     Fields:    Translation:HumansAnimalsPHPublic Health
    14. Are men who have sex with men at higher risk for HIV in Latin America more aware of PrEP? PLoS One. 2021; 16(8):e0255557. Assaf RD, Konda KA, Torres TS, Vega-Ramirez EH, Elorreaga OA, Diaz-Sosa D, Diaz SD, Pimenta C, Robles R, Medina-Mora ME, Grinsztejn B, Caceres C, Veloso VG. PMID: 34388155; PMCID: PMC8362965.
      View in: PubMed   Mentions: 4     Fields:    Translation:HumansCellsPHPublic Health
    15. Evidence supporting the standardisation of extragenital gonorrhoea and chlamydia screenings for women. Sex Transm Infect. 2021 12; 97(8):601-606. Jann JT, Cunningham NJ, Assaf RD, Bolan RK. PMID: 33361465.
      View in: PubMed   Mentions: 2     Fields:    Translation:HumansCellsPHPublic Health
    16. Sexual Mixing Patterns and Anal Human Papillomavirus Among Young Gay, Bisexual, and Other Men Who Have Sex With Men and Transgender Women in 2 Cities in the United States, 2012-2014. Sex Transm Dis. 2020 07; 47(7):473-480. Assaf RD, Javanbakht M, Meites E, Gratzer B, Steinau M, Crosby RA, Markowitz LE, Unger ER, Gorbach PM. PMID: 32541306; PMCID: PMC7340532.
      View in: PubMed   Mentions:    Fields:    Translation:HumansCells
    17. Exploring dual disclosures for men who have sex with men in Mpumalanga, South Africa: a report from the field. Afr J AIDS Res. 2018 Mar; 17(1):91-94. Daniels J, Lane T, Maleke K, Mogos W, Assaf R, Struthers H, McIntyre J, Coates T. PMID: 29471726.
      View in: PubMed   Mentions: 3     Fields:    Translation:HumansPHPublic Health
    18. Midtrimester isolated oligohydramnios in monochorionic diamniotic multiple gestations. J Matern Fetal Neonatal Med. 2019 Feb; 32(4):590-596. Chon AH, Korst LM, Assaf RD, Llanes A, Ouzounian JG, Chmait RH. PMID: 28965437.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    19. Fetal Serum β2-Microglobulin and Postnatal Renal Function in Lower Urinary Tract Obstruction Treated with Vesicoamniotic Shunt. Fetal Diagn Ther. 2017; 42(1):17-27. Chon AH, de Oliveira GH, Lemley KV, Korst LM, Assaf RD, Chmait RH. PMID: 27603215.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
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