Table 2.

Summary of the asthma patient portal features in the 16 studies categorized by key components of asthma management within the National Institutes of Health guideline (3,4).

Component	Function(s)
1: Measures of Asthma Assessment and Monitoring Patient portals allow patients monitor their asthma and how often they experienced asthma flares or a sudden worsening of symptoms along with hospitalizations and ED visits.	Home spirometry or peak flow (10, 15, 20), symptom monitoring (9–11, 15, 19–22, 24, 25), quality of life (18–20), healthcare utilization (9, 11, 21, 22)
2: Education for a Partnership in Asthma Care Patient portals provide educational videos and hand-outs for patients with asthma to learn about their condition along with a platform to communicate with their healthcare professionals.	Feedback to patient and physician ((10, 14, 19–21, 24–26), parent/child treatment goals (9, 11, 22), concerns about asthma (9, 11, 22), asthma education (9, 11, 14, 15, 20–23, 25, 26), 2-way communication (9, 11, 14, 15, 19–26), e-asthma action plan (10, 14–18, 20)
3: Control of Environmental Factors and Comorbid Conditions that Affect Asthma Patient portals enabled patients with asthma to track and consider any environmental triggers, such as exposure to smoke or air quality.	Home environmental factors (21, 25)
4: Medications Patient portals allow patients with asthma to review their lists of medications, allergies; and request refills and follow adherence.	Review medications (15, 23–25), side effects (9, 22), request medication refills (25), medication adherence (9, 15, 21, 22, 24)