Over a specific time period, time in target range (TTR) is expressed as the percentage of time that both systolic blood pressure is below 135 mmHg and diastolic blood pressure is below 85 mmHg.

In the Aktiia App, the Day Dashboard shows the TTR calculated based on the 2-h averages (maximum of 12 points)

The Week and Month Dashboards show the TTR calculated based on full-day averages (maximum 7 and 30/31 points respectively).

If either systolic or diastolic averages (2h or day) are above 135/85, the blood pressure is considered to be out of the target range.