INTRODUCTIONThe Asthma Control Test (ACT) is a 5-item self-administered tool designed to assess asthma control. It is said to be simple, easy and can be administered quickly by patients in the clinical practice setting. This stated benefit has yet to be demonstrated in our local clinical practice setting. The aim was to identify factors associated with difficulty in the administration of the ACT in different clinical practice settings in a tertiary hospital in Singapore.

MATERIALS AND METHODSThis is a prospective study performed from April to June 2008. All patients diagnosed with asthma and referred to an asthma nurse from the in-patient and out-patient clinical practice setting in Tan Tock Seng Hospital were enrolled.

RESULTSFour hundred and thirty-four patients were asked to complete the ACT tool. In the univariate model, we found that age, clinical setting and medical history to be significantly associated with the completion of the ACT. The odds of completion decreased by a factor of 0.92 (95% CI, 0.89 to 0.94) for every year's increase in age, and this was statistically significant (P <0.001). Similarly, the odds ratio of completion for those with more than 3 medical conditions by history were 0.59 (95% CI, 0.48 to 0.71) as compared to those with less than 3 medical conditions by history, and this was also significant (P <0.001). In the multivariate model, we only found age to be an independent and significant factor. After adjusting for age, none of the other variables initially significant in the univariate model remained significant.

CONCLUSIONThe results show that the ACT was simple and easy to be administered in younger-aged patients.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Asthma ; diagnosis ; Female ; Hospitals ; Humans ; Male ; Middle Aged ; Prospective Studies ; Singapore ; Surveys and Questionnaires ; Young Adult

INTRODUCTIONAsthma control varies in different clinical settings because of its multidimensional and heterogeneous nature, and variability over time. The revised asthma management guidelines indicate that the goal of treatment should be maintaining asthma control for long periods. The aims of this study were to explore: (i) difference in asthma control test scores in patients at different clinical practice settings; (ii) assess if patients were overestimating the level of their asthma control and (iii) assess the relationship of the derived Asthma Control Test (ACT) score to cost of inpatient stay and length of stay (LOS).

MATERIALS AND METHODSThe Asthma Control Test (ACT) is a 5-item questionnaire that assesses the multidimensional perspective of asthma control from activity limitation, shortness of breath, night symptoms, use of rescue medication and self-perception of asthma control. The score ranges on a scale from 1 (poorly controlled) to 5 (well controlled). ACT was administered to 447 patients diagnosed with asthma from the in-patient and out-patient settings (new and follow-up cases).

RESULTSThree hundred and ninety-nine (92%) patients completed the ACT questionnaire. The analysis only included patients who had completed the ACT questionnaire. The analysis showed that all the 5 items in the ACT questionnaire were significantly associated with different clinical settings (P <0.001). When we correlated the ACT question 5 (patients' self-rating of asthma control) in the ACT with Question 3 and Question 4 individually, it showed that most patients did not overestimate their asthma control (P <0.001). However, there was no correlation between the derived ACT score and cost (P = 0.419), LOS (P = 0.373), and the number of comorbid medical history (P = 0.055).

CONCLUSIONOur results reinforce the usefulness of ACT for clinicians to identify patients with poorly controlled asthma and to optimise their level of control in different clinical settings.

Adult ; Asthma ; physiopathology ; therapy ; Female ; Hospitalization ; Humans ; Length of Stay ; Male ; Middle Aged ; Outcome Assessment (Health Care) ; classification ; Primary Health Care ; Prospective Studies ; Surveys and Questionnaires ; Young Adult