Please note that the Apple HealthKit Characteristics Export Format has been deprecated in favor of the Apple HealthKitV2 Characteristics Export Format. This article should only be used for legacy exports, created prior to 11-April-2022.
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"
}