GINA-P and ACT-P Scores for Assessing Asthma Control

The goal of this observational study is to determine the accuracy of GINA-P and ACT-P scores in assessing asthma control levels among adults with asthma. The main question the study aims to answer is: How accurate are the GINA-P and ACT-P scores in assessing asthma control levels among adults with asthma? Participants will complete a questionnaire on asthma symptoms and undergo pulmonary function testing.

This study is a cross-sectional study. Thai patients aged 18 years or older with asthma will be included. Participants will complete two questionnaires assessing asthma control-the Global Initiative for Asthma (GINA) and the Asthma Control Test (ACT)-and will undergo pulmonary function using spirometry, fractional exhaled nitric oxide (FeNO) testing, and blood eosinophil count (BEC) measurement. GINA and ACT are questionnaires used to assess the level of asthma control. GINA-P and ACT-P scores are new tools that incorporate pulmonary function parameters (FEV1 ≥ 80%, no bronchodilator response, and FEV1/FVC ratio \> LLN). If these parameters meet the criteria, the "P" component is scored as zero (0); if any of these criteria are present, it is scored as one (1).

Inclusion Criteria: * Asthma * Age 18 years or older Exclusion Criteria: * Inability to perform spirometry test