Table 5.

Description of My Breathing Matters intervention components.

Target behaviour	Description
Improved preventer medication adherence	• Information about the benefits of medication use for prevention of asthma symptoms. • Addressing ‘common concerns’ about asthma medication. • A 4-week challenge (in which users were encouraged to engage in habitual optimal preventer inhaler use) to help people develop positive medication habits.
Appropriate healthcare service use	• Tools to create and store a Personal Asthma Action Plan and provide encouragement for its use. • Provide encouragement to attend an annual Asthma Review.
Engagement with breathing retraining	• A breathing retraining programme17 to help control asthma symptoms, including videos on how to improve your breathing technique.
Engagement with stress management	• Provision of stress management techniques, including relaxation, and advice on stress management (e.g., time management) and adaptive ways of thinking (e.g., thought awareness, using positive thinking, talking through your worries), to reduce asthma-related stress.
Send information to friends and family to encourage them to engage in asthma management	• Ability to send friends and family a hyperlink to relevant information about asthma treatment and symptoms.
Lifestyle changes	• Access to previously developed lifestyle change programmes adapted for asthma, including:  • StopAdvisor18 to support smoking cessation,  • Getting Active19 to increase physical activity adapted for asthma,  • POWeR20 to support weight management,  • Germ Defence21 to promote handwashing to prevent infections.