(DOCX 424 KB) Additional file 2 S2: analytical method description and validation: (description of data) Validation data for Plasma Renin Activity, plasma and urinary aldosterone, urinary prostanoids and urinary enzymes.
The CMP uses rigorous methods of data collection and validation to ensure data are complete, valid and reliable, and the CMPD meets the criteria of a high-quality clinical database.
Standard methods of data cleaning and validation were applied.
The present paper describes the methods of data collection and validation employed in the Intensive Care National Audit & Research Centre Case Mix Programme (CMP), a national comparative audit of outcome for adult, critical care admissions.
Despite the limitations of the methods used for data validation, it is unlikely that a reporting bias would be responsible for the association we found with traffic exposure in the area of residence.
Several methods of improving validity of qualitative research will be conducted including respondent validation, clear explanation of methods of data collection and analysis, reflexivity and audit trails.
The process of PRO validation requires time and includes rigorous methods of data analysis.
Science recognizes multiple methods of data collection.
A consistent method of recording performance measures, data validation, and conditional formatting could be utilised in real settings to improve recording of the data that could provide the evidence-base for more tailored and appropriate services for a client group.
This method of data analysis was similar to other validation studies on the ECOHIS [ 10, 13, 17].
