HealthKit Characteristics represent data that does not typically change over time, like date of birth.
| Field | Description |
|---|---|
HealthKitCharacteristicKey |
A unique, auto-generated key for this characteristic. |
ParticipantIdentifier |
The identifier of the participant this task was for. Can be used to cross reference with Participants. |
Date |
The date the characteristic was recorded, in ISO 8601 format. Includes timezone offset information. |
Value |
The characteristic’s value. May be a date (in ISO 8601 format), a yes/no selection, a number or a text field. |
InsertedDate |
The creation date of the entry, in ISO 8601 format. Is always in UTC. |
ModifiedDate |
The date the entry was last modified, in ISO 8601 format. Is always in UTC. |
Sample CSV Export
HealthKitCharacteristicKey,ParticipantIdentifier,Date,Type,Value,InsertedDate,ModifiedDate d0971aca-11dd-e811-816b-9e01d28da2ca,b05418f9-31ce-e811-816a-d46e67bc9fa8,2018-11-10T19:21:42-05:00,DateOfBirth,1969-10-17T00:00:00-0400,2018-10-31T13:35:12Z,2018-11-11T00:21:45Z 695D18E8-428A-E811-8166-F4DD8A83AAAC,TST3182602,2018-11-11T10:24:53-05:00,WheelchairUse,No,2018-07-18T04:27:41Z,2018-11-11T15:24:54Z
Sample JSON Export
{
"HealthKitCharacteristicKey": "d0971aca-11dd-e811-816b-9e01d28da2ca",
"ParticipantIdentifier": "b05418f9-31ce-e811-816a-d46e67bc9fa8",
"Type": "DateOfBirth",
"Date": "2018-11-10T19:21:42-05:00",
"Value": "1969-10-17T00:00:00-0400",
"InsertedDate": "2018-10-31T13:35:12Z",
"ModifiedDate": "2018-11-11T00:21:45Z"
}
{
"HealthKitCharacteristicKey": "695D18E8-428A-E811-8166-F4DD8A83AAAC",
"ParticipantIdentifier": "TST3182602",
"Type": "WheelchairUse",
"Date": "2018-11-11T10:24:53-05:00",
"Value": "No",
"InsertedDate": "2018-07-18T04:27:41Z",
"ModifiedDate": "2018-11-11T15:24:54Z"
}