Second letter questionnaire template.

<div><p>Objective</p><p>To construct a comprehensive physical exercise evaluation index system for asthmatic children aged 6–12 years.</p><p>Design</p><p>Based on knowledge-attitude-practice(KAP) theory, we constructed an item pool for a physical exercise evaluation index system using a literature review and semistructured interviews and refined the index system through two questionnaire cycles with Delphi experts.</p><p>Results</p><p>For the two questionnaire rounds, the recovery rate was 100%, the experts’ authority coefficients were 0.850 and 0.836, and the coordinated coefficients were 0.167 and 0.202 (P<0.001). Finally, four first-level indicators, namely, disease factors, exercise environment, exercise practice, and exercise psychology; 11 second-level indicators; and 50 third-level indicators were developed as a physical exercise evaluation index system for asthmatic children.</p><p>Conclusion</p><p>A physical exercise evaluation index system built using a literature review, qualitative interviews, and Delphi technique can provide scientific guidance for children with asthma, caregivers and health professionals to comprehensively assess the children’s physical exercise.</p></div>