Olga Tymejczyk, MPH

Research Scientist

Olga is a Research Scientist at the ISPH and an NIH Fogarty Global Health Fellow with the GHESKIO Centers in Port-au-Prince, Haiti. With training in epidemiology and biostatistical methods, her expertise includes quantitative and qualitative study design, data collection, and analysis of surveillance, service delivery, and survey data in both domestic and lower- and middle-income country settings (primarily Ethiopia, Tanzania, and Haiti). Most recently, Olga has led analyses for the World Health Organization on the impact of expanding antiretroviral treatment (ART) eligibility guidelines on the timeliness of ART initiation across 21 countries and has designed a population-representative household- and individual-level demographic and health survey for an urban slum setting in Haiti. Her subject matter expertise includes HIV, care continuum among HIV and STI co-infected patients, foodborne disease, hypertension, and health in slum settings. She is fluent in Spanish, German, and Polish, and proficient in Portuguese, French, and Ukrainian.

She is an epidemiology doctoral candidate under the mentorship of Dr Nash. Her dissertation examines hypertension patterns in a slum community and a cohort of HIV patients in Port-au-Prince, Haiti.

Recent publications:

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Tymejczyk O, Brazier E, Yiannoutsos C, Wools-Kaloustian K, Althoff K, Crabtree-Ramírez B, Van Nguyen K, Zaniewski E, Dabis F, Sinayobye JD, Anderegg N, Ford N, Wikramanayake R, Nash D; IeDEA Collaboration. HIV treatment eligibility expansion and timely antiretroviral treatment initiation following enrollment in HIV care: A metaregression analysis of programmatic data from 22 countries. PLoS Med. 2018 Mar 23;15(3):e1002534. doi: 10.1371

Kulkarni S, Tymejczyk O, Gadisa T, Lahuerta M, Remien RH, Melaku Z, El-Sadr W, Elul B, Nash D, Hoffman S. "Testing, Testing": Multiple HIV-Positive Tests among Patients Initiating Antiretroviral Therapy in Ethiopia. J Int Assoc Provid AIDS Care. 2017 Jan 1:2325957417737840. doi: 10.1177/2325957417737840.

Pathela P, Jamison K, Braunstein SL, Schillinger JA, Tymejczyk O, Nash D. Gaps along the HIV care continuum: findings among a population seeking sexual health care services in New York City. J Acquir Immune Defic Syndr. 2018 Mar 2. doi: 10.1097/QAI.0000000000001674.

Parcesepe A, Tymejczyk O, Remien R, Gadisa T, Kulkarni SG, Hoffman S, Melaku Z, Elul B, and Nash D. HIV-Related Stigma, Social Support, and Psychological Distress Among Individuals Initiating ART in Ethiopia. AIDS Behav. 2018 Feb 16. doi: 10.1007/s10461-018-2059-8.

Hoffman S, Tymejczyk O, Kulkarni S, Lahuerta M, Gadisa T, Remien RH, Melaku Z, Nash D, Elul B. Brief Report: Stigma and HIV Care Continuum Outcomes Among Ethiopian Adults Initiating ART. J Acquir Immune Defic Syndr. 2017 Dec 1;76(4):382-387. doi: 10.1097/QAI.0000000000001530. PMCID:PMC5659945

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