Healthc Inform Res.  2021 Oct;27(4):287-297. 10.4258/hir.2021.27.4.287.

Mapping the Korean National Health Checkup Questionnaire to Standard Terminologies

• Hwang JE
• Park HA
• Shin SY

• KMID: 2522210
• DOI: http://doi.org/10.4258/hir.2021.27.4.287

Abstract

Objectives
An increasing emphasis has been placed on the integration of clinical data and patient-generated health data (PGHD), which are generated outside of hospitals. This study explored the possibility of using standard terminologies to represent PGHD for data integration.
Methods
We chose the 2020 general health checkup questionnaire of the Korean Health Screening Program as a resource. We divided every component of the questionnaire into entities and values, which were mapped to standard terminologies—Systematized Nomenclature of Medicine Clinical Terms (SNOMED CT) version 2020-07-31 and Logical Observation Identifiers Names and Codes (LOINC) version 2.68.
Results
Eighty-nine items were derived from the 17 questions of the 2020 health examination questionnaire, of which 76 (85.4%) were mapped to standard terms. Fifty-two items were mapped to SNOMED CT and 24 items were mapped to LOINC. Among the items mapped to SNOMED CT, 35 were mapped to pre-coordinated expressions and 17 to post-coordinated expressions. Forty items had one-to-one relationships, and 17 items had one-to-many relationships.
Conclusions
We achieved a high mapping rate (85.4%) by using both SNOMED CT and LOINC. However, we noticed some issues while mapping the Korean general health checkup questionnaire (i.e., lack of explanations, vague questions, and overly narrow concepts). In particular, items combining two or more concepts into a single item were not appropriate for mapping using standard terminologies. Although it is not the case that all items need to be expressed in standard terminology, essential items should be presented in a way suitable for mapping to standard terminology by revising the questionnaire in the future.

Keyword

Standards, Patient Generated Health Data, Surveys and Questionnaires, Systematized Nomenclature of Medicine Clinical Terms (SNOMED CT), Logical Observation Identifiers Names and Codes (LOINC)

Figure

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  Figure 1 Examples of split items. (A) History of diagnosis and current medication status. (B) Smoking status, cessation period, smoking period, and consumption amount.

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  Figure 2 Examples of reorganization. (A) Smoking status and frequency of smoking. (B) Alcohol use and drinking frequency.

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  Figure 3 Mapping flow. SNOMED CT: Systematized Nomenclature Of Medicine Clinical Terms, LOINC: Logical Observation Identifiers Names and Codes.

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  Figure 4 Questions related to family medical history.

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  Figure 5 Diagram of SCTIDs 160303001 and 416855002.

Reference

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