The quality of the diagnosis-related variables is subject to the accuracy with which relevant information is recorded in patient notes, and then extracted by data coders.
JD read all downloaded notes and manually extracted sections of text that were relevant to the two aims of the study, which were then transferred into an Excel spreadsheet for analysis.
It is a hefty trove of photographs, drawings, notes, lletters, telegrams and extracts from his books and essays, documenting Camus's connections to and travels in Algeria, Europe, the Americas and Russia.
Where no diagnoses were extracted, notes and correspondence histories were searched.
Anonymised clinical data from ePJS including structured fields (for demographic, diagnostic and medication data) and pseudonymised unstructured free-text fields from case notes and correspondence have been extracted into the SLaM BRC Case Register.
Full case-notes were available, and extracted, for 464 eligible controls in strata that contained any cases.
The qualitative data was audiotaped and notes were extracted from these tapes by BL after consultation and methodological consensus with CS. (Different aspects of this and other data have been reported in Lloyd and Stirling [ 34]).
The histogram yields the values [ 58, 32, 8.5, 1, and 0.5%%] where the first number indicates the ratio of single notes, the second indicates the number of times two notes were extracted and so on.
For each patient, all available associated data were extracted, including narrative notes and hospital discharge summaries.
