Secondary Data Analysis: Using existing data to answer new questions.

Secondary data analysis is a cost-effective, accessible, and efficient means of utilizing existing data to answer new research questions. The manuscript provides an overview of the secondary data analysis process, as well as benefits and limitations inherent in the research method. An exemplar of pediatric focused research using a publicly available dataset is presented to facilitate understanding of the process. Novice and experienced researchers benefit from exploring the quantitative and qualitative secondary data analysis options available. [ABSTRACT FROM AUTHOR]