Unit variability factors data formats

Unit variability factors

Unit variability factors specify the unit-to-unit variation of substance concentrations on foods. Unit variability factors are described by a single unit variability factors table.

Unit variability factors

Unit variability factors are defined for a food, and may possibly also be specified for a specific substance and/or processing type. The unit variability factors are linked to the foods by means of the food code (idFood). Unit variability factors can be specified as unit variability factors (P97.5/mean) or as coefficients of variation of a statistical distribution.

Table aliases: UnitVariabilityFactors, UnitVariabilityFactor, VariabilityFactor, VariabilityFactors, VariabilityProcCompProd, UnitVariability.

Table 76 Table definition for UnitVariabilityFactors.
Name Type Description Aliases Required

idFood

AlphaNumeric(50)

The food code.

idFood, FoodId, Food

Yes

idSubstance

AlphaNumeric(50)

The code of the substance.

idSubstance, SubstanceId, SubstanceCode, Substance

No

idProcessingType

AlphaNumeric(50)

The processing type code.

idProcessingType, ProcessingTypeId, ProcessingType, ProcType

No

Factor

Numeric

The variability factor.

Factor, VarFac, VariabilityFactor

No

UnitsInCompositeSample

Numeric

The number of units in the composite sample.

UnitsInCompositeSample, NoUnitComp

Yes

Coefficient

Numeric

The coefficient of variation.

Coefficient, VariabilityCoefficient, CoefVar, VarCoef

No