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, McNairy ML, Petion JS, Rivera VR, Dorélien A, Peck M, Seo G, Walsh KF, Fitzgerald DW, Peck RN, Joshi A, Pape JW, Nash D. Hypertension prevalence and risk factors among residents of four slum communities: population-representative findings from Port-au-Prince, Haiti. J Hypertens. 2018 Oct 10. doi: 10.1097/HJH.0000000000001966. [Epub ahead of print]

Tymejczyk O, Jamison K, Pathela P, Braunstein S, Schillinger JA, Nash D. HIV Care and Viral Load Suppression After Sexual Health Clinic Visits by Out-of-Care HIV-Positive Persons. AIDS Patient Care STDS. 2018 Oct;32(10):390-398. doi: 10.1089/apc.2018.0097.

Parcesepe AM, Tymejczyk O, Remien R, Gadisa T, Kulkarni SG, Hoffman S, Melaku Z, Elul B, Nash D. Household decision-making power and the mental health and well-being of women initiating antiretroviral treatment in Oromia, Ethiopia. AIDS Care. 2018 Feb;30(2):211-218. doi: 10.1080/09540121.2017.1360998. Epub 2017 Aug 3.

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 Nov/Dec;16(6):546-554. doi: 10.1177/2325957417737840. Epub 2017 Nov 9.

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

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