How far back do we need to look to capture diagnoses in electronic health records? A retrospective observational study of hospital electronic health record data

The ADMISSION Research Collaborative, Jadene Lewis, Felicity Evison, Rominique Doal, Joanne Field, Suzy Gallier, Steve Harris, Peta le Roux, Mohammed Osman, Chris Plummer, Elizabeth Sapey, Mervyn Singer, Avan A Sayer, Miles D Witham^*

^*Corresponding author for this work