Occurrence frequencies data formats¶
Occurrence frequencies are described by one simple table, specifying for pairs of food and substance, the associated occurrence frequencies as percentages.
Occurrence frequencies¶
Occurrence frequencies are specified as percentages for pairs of food and substance. Optionally, a reference can be included in each record to specify the source (e.g., from literature) from which the percentage was obtained.
Table aliases: OccurrenceFrequencies.
| Name | Type | Description | Aliases | Required |
|---|---|---|---|---|
idFood |
AlphaNumeric(50) |
The food code. |
idFood, CodeFood, FoodId, FoodCode, Food |
Yes |
idSubstance |
AlphaNumeric(50) |
Code of the substance. |
idSubstance, CodeSubstance, SubstanceId, SubstanceCode, Substance |
Yes |
Percentage |
Numeric |
The occurrence frequency percentage. |
Percentage, FrequencyPercentage |
Yes |
Reference |
AlphaNumeric(200) |
Reference to the source from which this use frequency value is obtained. |
Reference, References, Source, Sources |
No |