Defining upper gastrointestinal bleeding from linked primary and secondary care data and the effect on occurrence and 28 day mortality
1 Division of Epidemiology and Public Health, The University of Nottingham, Clinical Sciences Building 2, City Hospital, Nottingham, NG5 1PB, UK
2 Nottingham Digestive Diseases Centre, National Institute for Health Research Biomedical Research Unit, Queen’s Medical Centre, Nottingham University Hospitals National Health Service Trust, Nottingham, NG7 2UH, UK
BMC Health Services Research 2012, 12:392 doi:10.1186/1472-6963-12-392Published: 13 November 2012
Additional file 1:
Table S1. Word document file containing a table of the ICD 10 supporting codes in each category and their frequency in this study.
Format: DOCX Size: 16KB Download file
Additional file 2:
Table S2. Word document file containing a table of the Read supporting codes in each category and their frequency in this study.
Format: DOCX Size: 21KB Download file