This study describes a method to construct a surveillance registry-based comparison group, which allows for estimating the effectiveness of the intervention while controlling for secular trends in the outcome of interest. Using data from the New York City population-based human immunodeficiency virus Surveillance Registry, the study created a contemporaneous comparison group for persons enrolled in the New York City human immunodeficiency virus Care Coordination Program (CCP) from December 2009 to March 2013. Registry-based comparison group estimates were attenuated relative to pre-post estimates of program effectiveness. These methods have broad applicability for observational intervention effectiveness studies and programmatic evaluations for conditions with surveillance registries.
Citation: Robertson MM, Waldron L, Robbins RS, Chamberlin S, Penrose K, Levin B, Kulkarni S, Braunstein SL, Irvine MK, Nash D. Using Registry Data to Construct a Comparison Group for Programmatic Effectiveness Evaluation – the New York City HIV Care Coordination Program. Am J Epidemiol. 2018 May 21. doi: 10.1093/aje/kwy103. [Epub ahead of print] Link to Article>>