Symptoms Export

With Synthea, it is possible to export the symptoms a person has experienced for the different conditions he suffered from during his life cycle. At a high level, the export will contain the following information for a given condition:

• the age (in years) at which the condition occurred (Note that this information is different from the time the condition was diagnosed)
• the age (in years) at which the condition was resolved, if any
• the number of symptoms expressed
• the name of the different symptoms as well as their severity level along the time period the condition was on.

It is possible to restrict the export to conditions that occurred during the last {exporter.years_of_history} years of the person. This is done by setting exporter.symptoms.mode = 0 (default one). If exporter.symptoms.mode is set to any other value, then the export will consider all conditions that occurred during the lifetime of the person.

The export can be made in two formats:

• Text
• CSV

Text

You can enable text records in src/main/resources/synthea.properties by setting exporter.symptoms.text.export = true. The Symptom Text Exporter will output, for each patient, a UTF-8 text file that lists a human-readable text file containing the patient related information. The generated files are saved into the following directory: ./{export.baseDirectory}/symptoms/text.

CSV

It is possible to enable Comma-Separated Value (CSV) exports in src/main/resources/synthea.properties by setting exporter.symptoms.csv.export = true. The generated files are saved into the following directory: ./{export.baseDirectory}/symptoms/csv.

Furthermore, there are additional parameters that dictates how the export will behave across several runs:

• exporter.symptoms.csv.append_mode: if set to true, then each run will add new data to any existing CSVs. On the other hand, if set to false, each run will clear out the files and start fresh.
• exporter.symptoms.csv.folder_per_run: if set to true, then each run will have CSVs placed into a unique subfolder. On the other hand, if set to false, each run will only use the top-level csv folder.

The structure of a generated csv file is as follows:

	Column Name	Data Type	Required?	Description
	PATIENT	UUID	true	key to the Patient.
	GENDER	String	true	Gender. M is male, F is female.
	RACE	String	true	Description of the patient's primary race.
	ETHNICITY	String	true	Description of the patient's primary ethnicity.
	AGE_BEGIN	Integer	true	The age at which the condition was onset.
	AGE_END	Integer	false	The age at which the condition was resolved (if any).
	PATHOLOGY	String	true	The name of the condition
	NUM_SYMPTOMS	Integer	true	The number of symptoms.
	SYMPTOMS	String	false	the symptoms (if any) and their severity level.