# Clinical Measurement Reports

Clinical trials are conducted to validate the accuracy of each parameter. The measurement details and results are presented under each subpage.

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Moment-to-moment fluctuations in the user's physiology mean that risk estimates could vary to some degree from one measurement to the next. The best estimate of a user's overall risk can therefore be obtained by averaging several measurements throughout the day and across several days to adequately account for this physiological variation.
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**Each measurement is conducted with the following minimum information requirement, data collection setup, and data collection procedure (additional details are provided if any):**

## Information Required 

• Blood flow information extracted from video of the user’s face (BitDoctor Technology) 

• Demographic information (From the user profile)

## Data Collection Setup 

The participant’s face was illuminated with LED lights. Blood flow information was captured from conventional video of the face using BitDoctor Application for iOS (research version). 

## Data Collection Procedure 

BitDoctor Application was activated to record a 30-second video of the subject using the front facing camera of the iPhone. At the end of each recording, subjects were asked to fill out a questionnaire to collect their demographic information.