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The IT example

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below shows tobacco filler and the types of tobacco of which it is composed, each listed listed as tobacco ingredients (IGDCMPIDin the variable IGDCMPID (ingredient or component identifier) for the Tobacco Product CIG01A (SPTOBID). The variable ITSPECIF shows the specification (/variety ) of the first three tobaccos. ITIGDPLX (Ingredient Complexity) is used to indicate that the Tobacco Filler and the Reconstituted Tobacco are complex ingredients (they both have two or more subcomponents). The details of which single tobacco ingredients compose these complex ingredients is made explicit in the IQ dataset example further down. ITCURMTH indicates the cure method. ITSPFL ITCIGIND (applicant-customized ingredient indicator) is used to indicate whether complex ingredients were made to the applicant's specification. TPMF indicates the Tobacco Product Master File name/number, which should be provided in the data if the component manufacturer has made it available.
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Note that there are two varieties of burley tobacco in this tobacco product, thus each is given a unique IGDCMPID value (Burley Tobacco and Burley Tobacco 2).

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Nameit
Dataset2

Row

DOMAIN

STUDYIDSPTOBIDIGDCMPIDTPMFITSPECIFITIGDPLXITCURMTHITSPFLITCIGIND
1ITTOB07CIG01ATobacco Filler

COMPLEX INGREDIENT

2ITTOB07CIG01ABurley TobaccoMF5555555NC 7LCSINGLE INGREDIENTAir
3ITTOB07CIG01ABright Tobacco
CC 1063SINGLE INGREDIENTFlue
4ITTOB07CIG01AOriental Tobacco
USDA Nicotiana Collection PI 552747SINGLE INGREDIENTSun
5ITTOB07CIG01AReconstituted Tobacco

COMPLEX INGREDIENT
N
6ITTOB07CIG01ABurley Tobacco 2
KT215LCSINGLE INGREDIENTAir

The IN dataset example below shows the list of non-tobacco ingredients

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used in the tobacco product identified as CIG01A. Each unique ingredient is listed in IGDCMPID
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. Where applicable, IUPAC name and CAS
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number are listed (IUPACNAM and CASNO variables, respectively). INIGDPLX is used to indicate whether an ingredient is a single ingredient or a complex ingredient.
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INCIGIND
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indicates whether complex ingredients were made to the applicant's specification. Grade, purity, manufacturer name, ingredient unique item number, and the Tobacco Product Master File number complete the dataset.

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Finally, the IQ domain is used to represent the quantity (target, minimum and maximum) of each ingredient identified in IGDCMPID that the product (SPTOBID) is designed to contain, with the units for these values represented in IQUNIT. The function of each ingredient is described in IQFUNCT. Ingredients that appear in more than one component of the tobacco product are quantified separately for each component. IQPARENT identifies a component or complex ingredient composed of the subcomponents/ingredients shown in IDGCMPID. IQLEVEL is used to identify at what level

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in the overall hierarchy that subcomponent/ingredient appears.
The following implementation rules apply, as described in more detail under the "Assumptions" subheading in section 2.8.8.6, SDTM Ingredient Quantities by Component (IQ):

  • IQPARENT must correspond to a value of IGDCMPID in the same dataset.
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    If parent is null, the ingredient is considered a top-level component and is assigned an IQLEVEL value of "1".
  • Records describing subcomponents/ingredients that compose a parent component listed in the dataset will have IQPARENT value equal to the IGDCMPID of that parent component. IQLEVEL will be set to n +1, where n=the parent record's value of IQLEVEL
  • Every value of IGDCMPID used in the IQ dataset must have a matching value of IGDCMPID:
    • In the IT dataset (when IQCAT=TOBACCO INGREDIENT) or,
    • In the IN dataset (when IQCAT=NON-TOBACCO INGREDIENT)

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