We entered all documents into a Microsoft Access database, and abstracted key features and identified key themes (see Appendix A for the data abstraction protocol). We developed an abstraction form in Microsoft Access for the peer-reviewed and gray literature (screen shots of the Access forms appear in Appendix A). The main elements of the abstraction form were document information, purpose, methods, and main findings. We also noted the type of documents that we found in the literature (e.g., systematic reviews and single descriptive studies).
Once we had abstracted the information, we synthesized it by main themes relating to financial literacy, health literacy, and the way in which each of these concepts informs the other.