Abstract :Background: Asthma treatment guidelines suggest the target of treatment ought to be optimal control. Asthma control test questionnaire alongside pulmonary function tests, is validated guideline for asthma control worldwide. Current study headed to evaluate correlations between asthma control and pulmonary function test results.
Components and Techniques: Two hundred fifty five asthma respondents enrolled in the current study. Asthma control was estimated by asthma control test questionnaire and lung function test was assessed by spirometer. Statistical analysis was performed and results comparison was obtained.
Outcome: One hundred thirty nine patients (54.7%) were classified in the controlled asthma group (asthma score obtained 20 or higher). Fifty seven patients (22.4%) and 58 patients (22.8%) were categorized as the partially and poorly controlled asthma groups respectively (15< asthma score < 20, asthma score < 15). Significant relationship was demonstrated between asthma control test and forced expiratory volume in one second pulmonary function parameters (P< 0.001). A highly significant correlation was obtained between forced expiratory volume in one second and the four last questions of asthma control test (r=0.19, P value < 0.001).
Conclusion: Asthma control test questionnaire is considered to be a reliable test in everyday asthma treatment guide in Iran. Asthma score = 20 is proposed to be adequate for detecting controlled asthma in Iran with no obligatory additional pulmonary functioning test.