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Epidemiologic methodology and biostatistics; causal analysis of non-experimental studies; bias analysis; global context of health and healthcare with particular interest in developing countries; global socioeconomic context of chronic diseases; comparative effectiveness research.
Dr. Arah is a Professor at the Department of Epidemiology, UCLA Fielding School of Public Health. He has served as the Chair of the International Health Committee, Director of the Center for Global and Immigrant Health, and the founding Associate Dean for Global Health at the UCLA Fielding School of Public Health. An African-born physician trained at the University College Hospital, Ibadan and University of Ibadan in Nigeria, he received his MSc and DSc, and MPH degrees from Erasmus University Rotterdam, and a PhD degree from the Faculty of Medicine of the University of Amsterdam in the Netherlands. He is formally trained in public health epidemiology, health services, health policy, social epidemiology and advanced quantitative methodology. He has won several awards, including a Netherlands Postgraduate Fellowship in Medicine and Health Sciences, the Council of Science Editors’ Award for “Outstanding Contribution to Global Health Policy and Practice” which was hosted by National Institutes of Health, and the Young Scholar Award of the European Society for Philosophy, Medicine and Health Care. He has also received internationally reviewed career development awards. He currently has an adjunct appointment at the Academic Medical Center of the University of Amsterdam. In addition to serving on the editorial boards of epidemiology, health services and global health journals, he regularly reviews manuscripts for biostatistics, epidemiology, general medicine, and public health journals.
Miller Jessica E, Molnar Miklos Z, Kovesdy Csaba P, Zaritsky Joshua J, Streja Elani, Salusky Isidro, Arah Onyebuchi A, Kalantar-Zadeh Kamyar Administered paricalcitol dose and survival in hemodialysis patients: A marginal structural model analysis.. Pharmacoepidemiology and drug safety. 2012; .
Witvliet Margot I, Kunst Anton E, Stronks Karien, Arah Onyebuchi A Assessing where vulnerable groups fare worst: a global multilevel analysis on the impact of welfare regimes on disability across different socioeconomic groups.. Journal of epidemiology and community health. 2012; 66(9): 775-81.
Witvliet Margot I, Kunst Anton E, Stronks Karien, Arah Onyebuchi A Variations between world regions in individual health: a multilevel analysis of the role of socio-economic factors.. European journal of public health. 2012; 22(2): 284-9.
Lukowsky Lilia R, Kheifets Leeka, Arah Onyebuchi A, Nissenson Allen R, Kalantar-Zadeh Kamyar Patterns and predictors of early mortality in incident hemodialysis patients: new insights.. American journal of nephrology. 2012; 35(6): 548-58.
Arah Onyebuchi A, Roset Bastiaan, Delnoij Diana M J, Klazinga Niek S, Stronks Karien Associations between technical quality of diabetes care and patient experience.. Health expectations : an international journal of public participation in health care and health policy. 2011; 7(3): .
Ricks Joni, Molnar Miklos Z, Kovesdy Csaba P, Kopple Joel D, Norris Keith C, Mehrotra Rajnish, Nissenson Allen R, Arah Onyebuchi A, Greenland Sander, Kalantar-Zadeh Kamyar Racial and ethnic differences in the association of body mass index and survival in maintenance hemodialysis patients.. American journal of kidney diseases : the official journal of the National Kidney Foundation. 2011; 58(4): 574-82.
Ogbu Uzor C, Westert Gert P, Slobbe Laurentius C J, Stronks Karien, Arah Onyebuchi A A multifaceted look at time of admission and its impact on case-fatality among a cohort of ischaemic stroke patients.. Journal of neurology, neurosurgery, and psychiatry. 2011; 82(1): 8-13.
Vanderweele Tyler J, Arah Onyebuchi A Bias formulas for sensitivity analysis of unmeasured confounding for general outcomes, treatments, and confounders.. Epidemiology (Cambridge, Mass.). 2011; 22(1): 42-52.
Damman Olga C, Stubbe Janine H, Hendriks Michelle, Arah Onyebuchi A, Spreeuwenberg Peter, Delnoij Diana M J, Groenewegen Peter P Using multilevel modeling to assess case-mix adjusters in consumer experience surveys in health care.. Medical care. 2009; 47(4): 496-503.
Arah Onyebuchi A, Chiba Yasutaka, Greenland Sander Bias formulas for external adjustment and sensitivity analysis of unmeasured confounders.. Annals of epidemiology. 2008; 18(8): 637-46.
Slobbe Laurentius C J, Arah Onyebuchi A, de Bruin Agnes, Westert Gert P Mortality in Dutch hospitals: trends in time, place and cause of death after admission for myocardial infarction and stroke. An observational study.. BMC health services research. 2008; 8(8): 52.
Arah Onyebuchi A The role of causal reasoning in understanding Simpson's paradox, Lord's paradox, and the suppression effect: covariate selection in the analysis of observational studies.. Emerging themes in epidemiology. 2008; 5(8): 5.
Arah Onyebuchi A, Ogbu Uzor C, Okeke Chukwudi E Too poor to leave, too rich to stay: developmental and global health correlates of physician migration to the United States, Canada, Australia, and the United kingdom.. American journal of public health. 2008; 98(1): 148-54.
Arah Onyebuchi A Physician migration and the Millennium Development Goals for maternal health: the untold story.. The Medical journal of Australia. 2007; 186(12): 659-60.