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Castor CDMS Calculations Manual

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Introduction to calculations: the basics

  • Introduction to calculation fields and syntax in EDC/CDMS
  • Using the "if-else" logic in EDC/CDMS
  • Forcing Castor to calculate with empty fields in EDC/CDMS
  • Using the "for loop" in calculations in EDC/CDMS
  • Comparing variables with calculation fields in EDC/CDMS
  • Compare several numerical variables against a specific variable in EDC/CDMS
  • Execute the calculation if not all variables have been filled in with in EDC/CDMS

General calculation templates

  • Calculate with grid fields in EDC/CDMS
  • Check if a number contains X number of digits or decimal places in EDC/CDMS
  • Check if all fields are filled in with in EDC/CDMS
  • Check if the inclusion criteria are met in EDC/CDMS
  • Check if all fields are complete (and list empty fields) in EDC/CDMS
  • Calculating with numbers in grids in EDC/CDMS
  • Calculating with grids: dates in EDC/CDMS
  • Allow data entry with different measurement units in EDC/CDMS
  • Validate grid field values in EDC/CDMS
  • Adding a dependency on a grid field in EDC/CDMS
  • Calculate the median of a set of values in EDC/CDMS
  • Force not to round a calculation result in EDC/CDMS
  • Validate capital letters in a text field in EDC/CDMS
  • Predefined variables in EDC/CDMS
  • Calculate the average in EDC/CDMS
  • Check if the 'upload file' field is empty or not in EDC/CDMS
  • AI prompt templates

Calculate (medical) scores

  • Calculate the BMI using height and weight in EDC/CDMS
  • Calculate body surface area (BSA) using height and weight in EDC/CDMS
  • Calculate the eGFR with the MDRD formula in EDC/CDMS
  • Assign a score based on a percentage in EDC/CDMS

Calculations with date and time

  • Doing date (and time) calculations in EDC/CDMS: the basics
  • Using if/else logic with dates in EDC/CDMS
  • Check if a date is before another date and show an error in EDC/CDMS if so
  • Show a message in EDC/CDMS when the date is more than X days before today or in the future
  • Add hours and minutes to a datetime field in EDC/CDMS
  • Add a month to a date in EDC/CDMS
  • Subtract a month from a date in EDC/CDMS
  • Adding hours or minutes to a time field in EDC/CDMS
  • Extract only date or time from date and time field in EDC/CDMS
  • Check if year is in the future in EDC/CDMS
  • Calculations with Number & Date Field
  • Check if the last visit date matches the end of study date in EDC/CDMS
  • Calculate the duration using time fields in EDC/CDMS
  • Adding today's date in EDC/CDMS

Date and time difference templates

  • Calculate the difference between two dates: EDC/CDMS
  • Calculate time difference between two time fields: EDC/CDMS
  • Calculate the age using a date variable: EDC/CDMS
  • Calculate the age using a year or year and month variable: EDC/CDMS
  • Check if the difference between two dates is between limits: EDC/CDMS
  • Calculate time difference in seconds (using text fields): EDC/CDMS
  • Calculate the difference between two datetime fields: EDC/CDMS
  • Calculating the difference using a date and a time field: EDC/CDMS
  • Calculate time difference in hh:mm:ss (using text fields): EDC/CDMS

Formatting dates

  • Check if entered date is in US format (mm/dd/yyyy)
  • Convert a date to CDISC format (dd/mmm/yyyy) in EDC/CDMS
  • Convert date formats in EDC/CDMS
  • Validating partial dates NK/MM/YYYY in EDC/CDMS

Popular Articles

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  6. Using the "if-else" logic in EDC/CDMS
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