Unit variability factors tiers

Overview

Table 154 Tier overview for module Unit variability factors.
Name	EC 2018 Acute Tier I	EC 2018 Acute Tier II	EFSA 2012 Acute Pessimistic	EFSA 2022 Acute Tier I	EFSA 2022 Acute Tier II	EFSA 2023 Acute Prospective Tier II
Unit variability model	BetaDistribution	BetaDistribution	BetaDistribution	BetaDistribution	BetaDistribution	BetaDistribution
Estimates nature	Realistic	Realistic	Realistic	Realistic	Realistic	Realistic
Unit variability parameter	VariabilityFactor	VariabilityFactor	VariabilityFactor	VariabilityFactor	VariabilityFactor	VariabilityFactor

Retrospective dietary CRA (EC 2018) - Acute / Tier I

Table 155 Tier definition for Retrospective dietary CRA (EC 2018) - Acute / Tier I.
Name	Setting
Unit variability model	BetaDistribution
Estimates nature	Realistic
Unit variability parameter	VariabilityFactor

Retrospective dietary CRA (EC 2018) - Acute / Tier II

Table 156 Tier definition for Retrospective dietary CRA (EC 2018) - Acute / Tier II.
Name	Setting
Unit variability model	BetaDistribution
Estimates nature	Realistic
Unit variability parameter	VariabilityFactor

Retrospective dietary CRA (EFSA 2012) - Acute / Pessimistic

Acute probabilistic exposure assessment using the pessimistic model settings according to the EFSA Guidance 2012. Only processing factors > 1 are applied. For unit variability, the Beta distribution is applied.

Table 157 Tier definition for Retrospective dietary CRA (EFSA 2012) - Acute / Pessimistic.
Name	Setting
Unit variability model	BetaDistribution
Estimates nature	Realistic
Unit variability parameter	VariabilityFactor

Retrospective dietary CRA (EFSA 2022) - Acute / Tier I

Table 158 Tier definition for Retrospective dietary CRA (EFSA 2022) - Acute / Tier I.
Name	Setting
Unit variability model	BetaDistribution
Estimates nature	Realistic
Unit variability parameter	VariabilityFactor

Retrospective dietary CRA (EFSA 2022) - Acute / Tier II

Table 159 Tier definition for Retrospective dietary CRA (EFSA 2022) - Acute / Tier II.
Name	Setting
Unit variability model	BetaDistribution
Estimates nature	Realistic
Unit variability parameter	VariabilityFactor

Prospective dietary CRA (EFSA 2023) - Acute / Tier II

Table 160 Tier definition for Prospective dietary CRA (EFSA 2023) - Acute / Tier II.
Name	Setting
Unit variability model	BetaDistribution
Estimates nature	Realistic
Unit variability parameter	VariabilityFactor