How should we format and structure the
spreadsheet?
•Each row should be a unique case and contain the unique identifier of MPOG
Case ID that can link this new data with existing data queries.
•Each column in the spreadsheet should capture a distinct data element or
variable. For binary/categorical variables, we suggest including one column for
the descriptive portion (words to describe the categories, ex. Yes/No) and
another column for the value code (corresponding numerical designation for
each category, ex. 0/1).
•Column names should be descriptive, yet concise and adhere to character limits
set by statistical packages (SAS has a 32-character limit). To ensure compatibility
with various statistical software, avoid spaces in column names by using
underscores (e.g., variable_name) or concatenation (e.g., VariableName).
Last Updated: 6/26/2025 Contact: mpog-research@med.umich.edu 5