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Table 1 Example concepts table for variables in the SEER data

From: The Generalized Data Model for clinical research

id

vocabulary_id

concept_code

concept_text

100010943

naaccr_grade

1

Grade I; grade i; grade 1; well differentiated; differentiated, NOS

100010944

naaccr_grade

2

Grade II; grade ii; grade 2; moderately differentiated; moderately well differentiated; intermediate differentiation

100010945

naaccr_grade

3

Grade III; grade iii; grade 3; poorly differentiated; differentiated

100010946

naaccr_grade

4

Grade IV; grade iv; grade 4; undifferentiated; anaplastic

100010947

naaccr_grade

5

T-cell; T-precursor

100010948

naaccr_grade

6

B-cell; Pre-B; B-Precursor

100010949

naaccr_grade

7

Null cell; Non T-non B;

100010950

naaccr_grade

8

N K cell (natural killer cell)

100010951

naaccr_grade

9

cell type not determined, not stated or not applicable

  1. Note: SEER = Surveillance, Epidemiology and End Results, a collection of data from cancer registries across the United States. NAACCR = North American Association of Central Cancer Registries