Characteristics of excluded guidelines
| Guidelines/first author [ref.] | Guidelines | Exclusion criteria |
| National Asthma Education and Prevention Program (National Heart, Lung, and Blood Institute), Third Expert Panel on the Management of Asthma [30] | Guidelines for the Diagnosis and Management of Asthma: Expert Panel Report 3 | Guidelines do not focus on asthma attacks |
| Yıldız [31] | Turkish Thoracic Society asthma management and prevention guideline: key points | Guidelines are focused on adults |
| Primary Care Respiratory Society [32] | PCRS-UK briefing document: Asthma Guidelines | It is not a guideline |
| National Asthma Education and Prevention Program (National Heart, Lung, and Blood Institute), Fourth Expert Panel on the Management of Asthma [33] | Guidelines for the Diagnosis and Management of Asthma: Expert Panel Report 4 | Guidelines do not focus on asthma attacks |
| National Asthma Council Australia [34] | Australian Asthma Handbook | It is not a guideline |
PCRS: Primary Care Respiratory Society.