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Revision History

© 2023 Clinical Data Interchange Standards Consortium, Inc. All rights reserved. 

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 CDISC did not modify this questionnaires, ratings, and scales (QRS) instrument to meet Clinical Data Acquisition Standards Harmonization (CDASH) case report form (CRF) standards. The PAR provided CRF has updated the item names represented on the CRF that were described in the original reference.

The representation of data collected for this instrument is based on the Study Data Tabulation Model Implementation Guide (SDTMIG) Functional Tests (FT) domain model, which can be found at the CDISC website at: https://www.cdisc.org/standards/foundational/sdtmig.

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The CDISC documentation of this instrument consists of: (1) controlled terminology, (2) standard database structure with examples, and (3) case report form(s) annotated with the CDISC SDTMIG submission values. The PAR provided CRF has updated the item names represented on the CRF that were described in the original reference.

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CDISC acknowledges R. Bob Smith III, PhD, Chairman and CEO Psychological Assessment Resources, Inc., for the approval to include the MMSE in the CDISC data standards.

References for the MMSE:

• Folstein MF, Folstein SE, McHugh PR. "Mini-mental state". A practical method for grading the cognitive state of patients for the clinician. J Psychiatr Res. 1975;12(3):189‒198.

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• The PAR website reference for the MMSE is: https://www.parinc.com/Products/Pkey/237.

3 The FT Domain Model

3.1 Assumptions for FT Domain Model

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    The scale points original scores include a numeric rating (0-1) and a description of what is represented by the rating (e.g., 0 = "INCORRECT", 1 = "CORRECT"). For the Serial 7s and WORLD questions, the numeric rating is 0-5, and subtotal for subscore for either one of the two sets of questions used is represented by FTTESTCD = "MMS104". For the MMSE, FTORRES is populated with the text description of "INCORRECT" or "CORRECT". The numeric rating is represented in FTSTRESC and FTSTRESN. The actual result answers to each question are not represented in the dataset; only whether the answer is "CORRECT" or "INCORRECT" is represented
   

2. Items are divided into 11 subcategories represented in FTSCAT: "ORIENTATION TO TIME", "ORIENTATION TO PLACE", "REGISTRATION", "ATTENTION AND CALCULATION", "RECALL", "NAMING", "REPETITION", "COMPREHENSION", "READING", "WRITING", and "DRAWING".

3. One item on the MMSE may be conditionally branched per the instrument instructions. As described on the CRF, an alternative item (spell WORLD backward) should only be administered if the examinee refuses to perform the Serial 7s task. A record is created in rs.xpt for all items. When an item is considered a conditionally branched item, it is represented as follows:

   1. QNAM = “QSCBRFL”, QLABEL = “Conditional Branched Item Flag “, QVAL = “Y” (this is a QS supplemental qualifier variable related to the record).
   2. QSORRES, QSSTRESC, and QSSTRESN are set to null (missing).
   3. QSREASND = "SUBJECT REFUSED TO ANSWER"

4. Records are created in qs.xpt for every collected item on the instrument: 

   1. For items with no data, QSORRES, QSSTRESC, and QSSTRESN are all missing and QSSTAT = "NOT DONE". If the reason is known then that reason is represented in QSREASND (e.g., QSREASND = "PREFER NOT TO ANSWER"). If the reason is unknown, then QSSTAT = "NOT DONE" and QSREASND is missing.

   2. Due to the variability of copyright holder and public domain derived subscore and overall score generation processes, records are not included for derived subscores or total and overall scores that are not provided.

5. The MMSE instrument includes subscore

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   and total scores overall score that are considered as captured data on the CRF and is not considered as derived in the example below.   These scores may be submitted in SDTM or derived in the Analysis Data Model (ADaM) per scoring instructions from the CRF.

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   1. Subtotal Subscore and total overall scores are represented in--ORRES, --STRESC, and --STRESN.

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   2. If subscores or overall scores are received by the sponsor, it is recommended that they are submitted to SDTM and SDTM and verified in ADaM.

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      It is the sponsors repsonsibility to do this verification based on the instrument's user usesr manual or instructions from the copyright owner.
6. Terminology:
   

   1. FTCAT, FTTESTCD, and FTTEST values are included in CDISC controlled terminology.

   2. A full list of value sets for result field is provided in Section 4, SDTM Mapping Strategy.

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The table represents the items, subtotalsubscore, and total scores from the MMSE instrument. USUBJID = "2324-P0001" performed the Serial 7s portion of the MMSE. USUBJID = "2324-P0002" refused the Serial 7s portion of the MMSE but performed the WORLD spelled backwards portion instead. USUBJID="2324-P0003" did not perform the MMSE at the scheduled visit.

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