Dose response models data formats

Dose response models are specified using three tables: the dose response models table holds the dose response model definitions (id, name, description) and other information about the dose response models. The dose response model benchmark doses table records the benchmark doses and (optionally) the model parameters for specific substances and covariates. The dose response model benchmark doses uncertainty table records results from bootstrap runs for the benchmark doses per substance/covariate combination.

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Dose response models

Each dose response model has a unique id, a name (optional), and description (optional). Also, each dose response model is associated with a specific dose response experiment (idExperiment) from which the data used to create the model is obtained, a response (idResponse), one or more substances, and, optionally, specific covariates considered by the dose response model. The combination of the benchmark response type and the associated value define the benchmark response of the model. The dose unit specifies the unit used for the doses, and if applicable, the model equation can be specified.

Accepted table names: DoseResponseModels, DoseResponseModel.

Table 200 Table definition for Dose response models.
Name Type Description Aliases Required

idDoseResponseModel

AlphaNumeric (50)

The unique identification code of the fitted dose response model.

idDoseResponseModel, idModel

Yes

idExperiment

AlphaNumeric (50)

The identification code of the experiment from the dose response model.

experimentCode, experimentId

Yes

Name

AlphaNumeric (100)

The name of the dose response model.

Name

No

Description

AlphaNumeric (200)

Description of the dose response model.

Description

No

Substances

AlphaNumeric

Code or comma separated list of the codes of the substances in the Dose Response Model. E.g., ‘Cyproconazole, Thiram’.

Substances

Yes

idResponse

AlphaNumeric (50)

The response of the dose response model.

idResponse, Response

Yes

Covariates

AlphaNumeric

The covariates considered by the dose response model.

Covariates, Covariate

No

BenchmarkResponse

Numeric

The value of the benchmark response or critical effect size.

BenchmarkResponse, CriticalEffectSize, CES

Yes

BenchmarkResponseType

BenchmarkResponseType

Specifies how the benchmark response is expressed. E.g., using a percent change in mean response or, for quantal response types, in terms of extra risk, additional risk, or ED50.

BenchmarkResponseType, HazardEffectSizeType, CriticalEffectSizeType

No

LogLikelihood

Numeric

Loglikelihood of the model fit.

LogLikelihood

No

DoseUnit

AlphaNumeric (50)

The dose unit (if not specified, then mg/kg is assumed).

DoseUnit, UnitDose

No

ModelEquation

AlphaNumeric (500)

If available, the model equation of the dose response model (R model equation) or the identifier of the dose response model type.

ModelEquation, DoseResponseModelEquation, Equation

No

Dose response model benchmark doses

The benchmark responses and benchmark doses belonging to the dose response models are recorded per substance/covariate in the dose response model benchmark doses table. Optionally, if the model equation of the dose response model has been specified in the dose response models table, the model parameter values for this specific substance/covariate can be specified here.

Accepted table names: DoseResponseModelBenchmarkDoses.

Table 201 Table definition for Dose response model benchmark doses.
Name Type Description Aliases Required

idDoseResponseModel

AlphaNumeric (50)

The identification code of the dose response model to which this record belongs.

idDoseResponseModel

Yes

idSubstance

AlphaNumeric (50)

The code of the substance.

idSubstance, SubstanceId, SubstanceCode, Substance

Yes

Covariates

AlphaNumeric (500)

Comma separated list of the covariate values for which this benchmark dose applies.

Covariates, Covariate

No

BenchmarkDose

Numeric

The (nominal) benchmark dose (BMD).

BenchmarkDose, BMD, CED

Yes

BenchmarkDoseLower

Numeric

Benchmark dose lower uncertainty bound (BMDL).

BenchmarkDoseLower, BMDL, CEDL

No

BenchmarkDoseUpper

Numeric

Benchmark dose upper uncertainty bound (BMDU).

BenchmarkDoseUpper, BMDU, CEDU

No

ModelParameterValues

AlphaNumeric (500)

Parameter values for dose response models.

ParameterValues

No

Dose response model benchmark dose bootstraps

Empirical uncertainty values of the benchmark benchmark doses of dose response models can be recorded in the dose response model benchmark doses bootstraps table. The uncertainty set identifier (idUncertaintySet) can be specified to retain correlations between uncertainty records that originate from the same bootstrap run.

Accepted table names: DoseResponseModelBenchmarkDosesBootstraps, DoseResponseModelBenchmarkDosesUncertain.

Table 202 Table definition for Dose response model benchmark dose bootstraps.
Name Type Description Aliases Required

idDoseResponseModel

AlphaNumeric (50)

The identification code of the dose response model to which this record belongs.

idDoseResponseModel

Yes

idUncertaintySet

AlphaNumeric (50)

The uncertainty set identifier.

idUncertaintySet, UncertaintyId

Yes

idSubstance

AlphaNumeric (50)

The code of the substance.

idSubstance, SubstanceId, SubstanceCode, Substance

Yes

Covariates

AlphaNumeric (500)

Comma separated list of the covariate values for which this benchmark dose applies.

Covariates

No

BenchmarkDose

Numeric

Benchmark dose (BMD).

BenchmarkDose, BMD, CED

Yes