Systematic review and content analysis of asthma knowledge questionnaires: A focus on the knowledge surrounding acute...

Asthma education is a key component of asthma management. Asthma education around the management of a person who is having an acute exacerbation of asthma (often referred to as asthma first aid (AFA) training) is important, particularly in a school setting. There is no gold standard assessment of asthma knowledge and also there is no specific tool to measure the knowledge of AFA. Our aim was to identify asthma knowledge questionnaires and perform a content analysis. We were interested in evaluating the number, the type and the format of AFA questions.

A literature search was performed to identify the instruments which were able to assess asthma knowledge of people with asthma and/or caregivers of people with asthma. An electronic database search was performed in EMBASE, IPA, MEDLINE and PUBMED. Articles which described the development or psychometric testing of an asthma knowledge questionnaire were included. The content of questions in each instrument was analysed and categorised using the NVivo software, and a secondary analysis was performed to identify knowledge questions relevant to the management of an acute asthma exacerbation.

Forty-four papers with 37 different instruments met the inclusion criteria. The majority of the instruments contained a relatively low proportion of questions related to the management of acute asthma, i.e., only 162 of the 780 questions (21%). No questionnaire had sufficient specific emphasis on acute asthma management knowledge to test the impact of AFA training.

There is a scope to develop an up-to-date validated acute asthma management knowledge questionnaire for use in research and clinical settings.