Stephen Arpadi

Stephen Arpadi

Stephen Arpadi

Epidemiology and Pediatrics (in the Sergiesvky Center) at the Columbia University Medical Center


G.H. Sergievsl Center, 622 W. 168th Str, PH 19th Floor Room 114
New York NY US 10032
Email: CV:


Stephen Arpadi, MD, MS is Professor of Pediatrics and Epidemiology at the G.H. Sergeiveksy Center, College of Physicians & Surgeons and the Mailman School of Public Health at the Columbia University Medical Center. He received a BA from Antioch College and attended medical school at George Washington University. After completing his Residency Training program in Pediatrics at the Children's National Medical Center, he obtained a Masters of Science in Epidemiology and completed a Post-doctoral Fellowship at the HIV Center at Columbia's School of Public Health. Dr. Arpadi's clinical, academic and public health interests have focused on pediatric HIV/AIDS including efforts to expand global access to antiretroviral medications. He became involved in pediatric HIV/AIDS during his first job out of residency working in health center in neighborhood badly affected by the emerging HIV epidemic in Northern Manhattan. Since that time he has many years of experience in developing and managing multidisciplinary medical care and treatment programs for HIV-infected children in New York City, including serving as the Director of the Program for Children and Families - a family centered care and treatment program for HIV-infected and affected families at St. Luke's Hospital in New York City. During the past ten years, he has served as a Technical Advisor for Columbia University's International Center of AIDS Programs (ICAP) providing technical assistance and training for related HIV care and treatment in sub-Saharan Africa funded by the US Presidents Emergency Program for AIDS Relief (PEPFAR). He has participated in the development of treatment guidelines for children infected with HIV and was a member of the World Health Organization Technical Advisory Group on HIV and Nutrition. He is currently on the WHO-Unicef Interagency Task Force for Child Survival and the NIH AIDS Therapeutic Trials Data Safety and Monitoring Board. Dr. Arpadi's research interests concern growth, nutrition, bone and metabolic health, and other long-term outcomes in HIV-infected children and adolescents. He is the Principal Investigator of an NIH-funded study of study of bone health in HIV-infected children on anti-retroviral therapy in Johannesburg South Africa and is currently part of a multi-country collaborative study of implementation "Option B" for prevention of mother to child transmission of HIV in Swaziland. He has authored over 50 peer-reviewed articles and book chapters. He is the co-director of the Epidemiology of HIV/AIDS course for masters and doctoral students at the Mailman School of Public Health. He lives in New York City and is married to Dr. Terry Marx who is also a pediatrician, and is the father of Adina and Charlotte Marx-Arpadi.



MSc, 1991, Columbia School of Public Health
MD, 1982, George Washington University
BA, 1975, Antioch College

Columbia Affiliations

Professor, G.H. Sergievsky Center

Other Affiliations

Areas of Expertise


Select Urban Health Activities

St. Luke's-Roosevelt Hospital Comprehensive Care Center: Comprehensive HIV/AIDS Care and Treatment program
: Clinical Care and Treatment for HIV-infected children, adolescents and young adults

Select Global Activities

ICAP: Technical Advisor for Pediatric HIV care and treatment programs and prevention of mother to child transmission of HIV(PMTCT)initiatives. These activities are in support of the Swaziland Ministry of Health and receive funding support from Presidents Emergency Fund for AIDS Relief
ASENZE- Health & Psychosocial Need: Children with Developmental Disorder in a Time of HIV: The objective of this project is to determine the determinants and predictors of school entry and disability in children living in rural South Africa
Bone Health in HIV-infected South African Children : This is a 5 year project evaluating bone acquisition in perinatally HIV-infected children who began anti-retroviral therapy early in life.

Select Publications

Yin M.T., Lund E., Shah, J., Zhang, C.A., Foca, M., Neu, N., Nishiyama, K.K., Zhou, B., Guo, X.E., Nelson, J., Bell, D.L., Shane, E., Arpadi, S.M. (2013). Lower peak bone mass and abnormal trabecular and cortical microarchitecture in young men infected with HIV early in life. AIDS. [Epub ahead of print]
Shiau S., Broun E., Arpadi S, Yin M. (2013). Incident fractures in HIV-infected individuals: a systematic review and meta-analysis. AIDS; 27:1949-1957.
Shiau S., Broun E., Arpadi S, Yin M. (2013). Incident fractures in HIV-infected individuals: a systematic review and meta-analysis. AIDS; 27:1949-1957.
Arpadi, S., McMahon D., Abrams, E., Bamji, M., Purswani M., Engelson E., Horlick M., Shane, E. (2012). The effect of supplementation with cholecalciferol and calcium on 2 year bone mass accrual in HIV-infected children and adolescents: a randomized clinical trial. Am J Clin Nutr; 95:678-685
Fawzy A, Arpadi S, Kankasa C, Sinkala M, Mwiya M, Thea D, Aldrovandi G, Kuhn L Early weaning increases diarrhea morbidity and mortality among uninfected children born to HIV-infected mothers in Zambia Journal of Infectious Diseases 2011
Murnane PM, Arpadi SM, Sinkala, M, Kankasa C, Mwiya M, Kasonde P, Thea, DM, Aldrovandi G, Kuhn L. Lactation-associated postpartum weight changes among HIV-infected women in Zambia. Int J Epidemiol. 2010 39 1299-310 2010
Arpadi S, Fawzy A, Aldrovandi G, Kankasa C, Sinkala M, Mwiya M, Thea M, Kuhn L Growth faltering due to breastfeeding cessation among uninfected children born to HIV-infected mothers in Zambia Am J Clin Nutr 90 344-353 2009
Arpadi S, Bethel J, Horlick M, Sarr M, Bamji M, Abrams E, Purswani M, Engelson E Longitudinal changes in regional fat content in HIV-infected children and adolescents AIDS 23 1501-1509 2009
Arpadi S, McMahon D, Abrams EJ, Bamji M, Purswani M, Engelson ES, Horlick M, Shane E. The effect of bimonthly supplementation with oral cholecalciferol on serum of 25-hydroxyvitamin D in HIV-infected children and adolescents Pediatrics 123 e121-126 2009
Arpadi S; Horlick M; Shane E Metabolic bone disease in human immunodeficiency virus-infected children J Clin Endocrinol Metab 89 21-3 2004

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