Asthma Control Status in the Propeller App

The Propeller system defines your level of asthma control by how often you are using your reliever medication. We use national guidelines (USA-based National Heart, Lung and Blood Institute, or NHLBI) to determine this level of control. If your asthma is not well or is poorly controlled, we recommend talking to your doctor about ways to improve your health. We also use the Asthma Control Test (ACT) to learn more about how your level of asthma control changes over time.

To view your Asthma Control Score:
1. Tap the ‘Trends’ tab located on the bottom of your app screen.
2. Make sure ‘Reliever’ is selected at the top of the Trends page.
3. Your Asthma Control Score and the factors that influence your score appear in the ‘Level of Asthma Control’ section
4. Tap the blue 'i' icon for helpful information about asthma control levels

To view your ACT History:
1. Tap the ‘Records’ tab located on the bottom of your app screen.
2. Tap the ‘ACT History’ section.
3. The date of each Asthma Control Test you’ve taken appears on the left. The number in the circle represents your score on a scale from ‘not well controlled’ to ‘well controlled’.

About Asthma Control Scores:
The following will help you better understand the definition of each level of control and what factors impact your score.

Well Controlled

• Need reliever medication less than 2 days per week.

• Nighttime reliever use occurs no more than once a month for ages 0-11 and no more than twice a month for age 12 and older.

• Generally there is no limitation to activity.

Not Well Controlled

• Need reliever medication more than 2 days per week.

• Nighttime reliever use occurs more than twice a month for ages 0-11 and more than 1-3 times per week for ages 12 and older.

• There is generally some limitation to activity.

Very Poorly Controlled

• Need reliever medication several times a day.

• Nighttime reliever use occurs 2 or more times per week for ages 0-11 and 4 or more times per week for ages 12 and older.

• Generally activity is extremely limited.

Night-time use is defined as between the hours of 10pm-7am.