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conventions_for_class
Tomioka edited this page Dec 8, 2018
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- One or many raw variable is mapped to one SDTM variable. In case of one raw variable to many SDTM variables, only one SDTM variable is kept, since other SDTM variable(s) can be derived programmatically,
- Any raw variables that do not fit into SDTM data model but maybe needed for analysis is padded with a prefix of QNAM_. This is for SUPPQUAL domains,
- Partial dates need to be populated in ISO8601 format, so character based raw date (without time) variables are mapped to --DTC/----DTC variables. Time raw variables are mapped to --DTC_TM/----DTC_TM,
- Some flag variables in the raw data are useful in the SDTM programming, therefore these will have prefix of F_. For instance, "same as visit variable" (F_VIS) is not mapped directly but used to get the visit date as an assessment date,
- De-normalized structure is a preferred choice for finding domains in EDC. Therefore, each test name has its own field name. These are labeled as -ORRES_{TEST Code}. For example, VSORRES_HEIGHT. Similarly, measurement units are labeled as -ORRESU_{TEST Code}.
- Any raw variables that are not mapped are labeled as 'drop'. The records are kept in case SDTM programmers choose to use them.