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For the TIG Product Impact on Individual Health use case, applicants may collect free text data on a CRF to supplement a standard field. A common example is collection using a list of choices with a field to collect "Other, specify". In such cases, collected free text will be populated in the domain based on the scope or role of the variable used to represent data from the standard collection field.


NumVariable PopulationImplementation
1

When Data from a Standard Field is Represented in a Variable with Role:

  • Grouping Qualifier,
  • Synonym Qualifier,
  • Record Qualifier; or
  • Variable Qualifier
When free text is collected to supplement a standard non-result qualifier field, the free text value will be represented in the SUPP-- dataset.
2

When Data from a Standard Field is a Result Represented in --ORRES.

When free text is collected to supplement a result, representation of the value will depend on the applicant's coding practice and analysis requirements.

  • To maintain controlled terminology pre-specified on the CRF, free text will be represented in --ORRES and controlled terminology will be represented in --STRESC. For example, if eye color is collected as a subject characteristic and "blueish gray" is collected for Other, specify, then free text may be represented in SCORRES and controlled terminology may be represented in SCSTRESC. 
CRFRepresentation

Eye Color:

Brown, Black, Blue, Green, Other, Specify:

SCTEST

SCORRES

SCSTRESC

Eye Color

BLUEISH GRAY

OTHER

  • To expand terminology based on values collected from "Other, specify", free text will be represented in --ORRES and the value of --STRESC will reflect the applicant's coding decision.

CRFRepresentation

Eye Color:

Brown, Black, Blue, Green, Other, Specify:

SCTEST

SCORRES

SCSTRESC

Eye Color

BLUEISH GRAY

GRAY

  • If the applicant does not require that controlled terminology is maintained, then the verbatim value will also be represented in --STRESC..
CRFRepresentation

Eye Color:

Brown, Black, Blue, Green, Other, Specify:

SCTEST

SCORRES

SCSTRESC

Eye Color

BLUEISH GRAY

BLUEISH GRAY


"Specify" Values for Topic Variables

Interventions

If a list of specific treatments is provided along with "Other, Specify", --TRT should be populated with the name of the treatment found in the specified text. If the sponsor wishes to distinguish between the prespecified list of treatments and those recorded in "Other, Specify," the --PRESP variable could be used. For example:

Indicate which of the following concomitant medications
was used to treat the subject’s headaches:


  •   


If ibuprofen and diclofenac were reported, the CM dataset would include the following:

CMTRT

CMPRESP

IBUPROFENY
DICLOFENAC

Events


"Other, Specify" for events may be handled similarly to Interventions. --TERM should be populated with the description of the event found in the specified text and --PRESP could be used to distinguish between prespecified and free-text responses.

Findings

"Other, Specify" for tests may be handled similarly to Interventions. --TESTCD and --TEST should be populated with the code and description of the test found in the specified text. If specific tests are not listed on the CRF and the investigator has the option of writing in tests, then the name of the test would have to be coded to ensure that all --TESTCD and --TEST values are consistent with the test controlled terminology.
For example, a lab CRF collected values for hemoglobin, hematocrit, and "Other, specify". The value the investigator wrote for "Other, specify" was "Prothrombin time" with an associated result and units. The sponsor would submit the controlled terminology for this test:  LBTESTCD would be "PT" and LBTEST would be "Prothrombin Time", rather than the verbatim term, "Prothrombin time" supplied by the investigator.


"Specify" Values --OBJ

As illustrated in the following figure, when findings are collected about an event or intervention, and the name of the event or intervention is collected in an "Other, specify" CRF field, the value in --OBJ variable depends on whether the Findings record has a parent record and whether the "Other, specify" value was coded. See also Section 6.4.3, Variables Unique to Findings About.

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