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The ADAPCH Variable Metadata table contains an example of analysis variable metadata for a subset of possible variables available for the APACHE II. Example value-level metadata are found in the Parameter Value Level List - ADAPCH [AVAL] metadata table. The ADAPCH Variable Metadata table does not include all of the possible variables that may be present in the Subject-Level Analysis Dataset (ADSL) and copied to the BDS structure analysis dataset, with the exception of the required STUDYID and USUBJID. For a complete list of available ADSL variables, consult the ADaMIG. Some ADSL variables (e.g., REGION1) were included in this example for stratification, and are not required. Additional covariates or other variables may be added as needed for analysis. Common BDS variables such as BASE and CHG have been omitted from the example as the majority analyses of APACHE II do not use these variables. There is no specific ordering of variables recommended in this supplement. The SDTM variables were placed next to the corresponding derived ADaM variables for illustration purposes only. 

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