Versions Compared

Old Version 35

changes.mady.by.user Lorraine Sobson

Saved on

compared with

New Version Current

changes.mady.by.user Christine Connolly

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

Metadataspec
NumVariable PopulationImplementation
1

Observation start timing relative to a fixed reference point


  • Variable --STTPT represents an applicant-defined fixed reference point that characterizes the start of an observation. Allowable values for --STTPT are a description of or the date and/or time of the fixed reference time point. 
  • Variable --STRTPT represents the start of an observation relative to a reference time point represented in --STTPT. Allowable values are that an observation can:
    • start "BEFORE" the reference point,
    • start "AFTER" the reference point,
    • start "COINCIDENT" with the reference point, or
    • be "UNKNOWN" when it started.
2

Observation end timing relative to a fixed reference point

  • Variable --ENTPT represents an applicant-defined fixed reference point that characterizes the end of an observation. Allowable values for --ENTPT are a description of or the date and/or time of the fixed reference time point. 
  • Variable --ENRTPT represents the start of an observation relative to a reference time point represented in --ENTPT. Allowable values are that an observation can:
    • end "BEFORE" the reference point,
    • end "COINCIDENT" with the reference point,
    • end "AFTER" the reference point,
    • be known that it did not end but was "ONGOING", or
    • be "UNKNOWN" when it ended or if it was ongoing.
3Planned intervals relative to a fixed reference point

When instances of an activity are scheduled at planned time intervals relative to a fixed reference point (e.g., an exposure), the following timing variables will be used:

VariableDescription of Use
--TPTREFRepresents a description of the fixed reference point from which the planned observation will be made
--RFTDTCRepresents the actual date/time of the value of --TPTREF
--ELTM

Represents the planned elapsed time from the fixed timepoint reference to the planned observation. The value of this variable is usually also reflected in the value of variable --TPT.

--TPTRepresents the label for the time point relative to the value of --TPTREF
--TPTNUMRepresents the order of time points represented in --TPT relative to the value of --TPTREF


...