User Information

For the calculation of the ASCVD Risk and the Heart Age indicators, the SDK requires receiving the user information with the details of the user taking the measurement.

The demographic information consists of three fields:

• Sex (as classified at birth) [UNSPECIFIED / MALE / FEMALE]
• Age [years]
• Weight [Kilograms]
• Height [Centimeters]
• Smoking Status [UNSPECIFIED / SMOKER / NON_SMOKER]

The application can provide the user information as part of the session initialization.

In the following example, the sex is female, the age is 35 years, the weight is 65 kilograms, the height is 165 centimeters and the smoking status is smoker. In the example the measurement session is a face session, but it can be used in a PPG Device session as well.

Dart

try {
    final licenseDetails = LicenseDetails("<ENTER_YOUR_LICENSE_KEY>");
    final userInformation = UserInformation(sex: Sex.female, age: 35, weight: 65, height: 165, smokingStatus: SmokingStatus.smoker); 
    Session? session = await FaceSessionBuilder() 
        .withUserInformation(userInformation) 
        .withImageDataListener(this)
        .withVitalSignsListener(this)
        .withSessionInfoListener(this)
        .build(licenseDetails);
} on HealthMonitorException catch(e) {
    print("Received Error. Domain: ${e.domain} Code: ${e.code}");
}

If any of the user information parameters is unknown, it is recommended to provide the known parameters and to leave the others 'null'/'UNSPECIFIED'.

Important

When a session is created with user information, all measurements performed during that session use the same user information. Therefore, a new session must be created in order to update the user information.