• 作者：Francisco Javier Alvarez-Gutié ; rrez^a ; ^{franciscoalvarez@neumosur.net} ; Juan Francisco Medina-Gallardo^a ; Pablo Pé ; rez-Navarro^a ; Juan José ; Martí ; n-Villasclaras^b ; Bernardo Martin Etchegoren^c ; Beatriz Romero-Romero^d ; Juan Manuel Praena-Ferná ; ndez^e
• 关键词：Asma ; Asthma Control Test (ACT) ; Control ; Cuestionarios ; GINA (Global Initiative for Asthma) ; Ó ; xido nitrico exhalado (FeNO)
• 刊名：Archivos de Bronconeumolog铆a
• 出版年：2010
• 期刊代码：pca65_03002896
• 类别：med
• 出版时间：July 2010
• 卷：46
• 期：7
• 页码：370-377
• 文件大小：282 K

Introduction

The current goal of asthma treatment is to achieve and maintain control. This study aimed to explore the relationship between the ACT (Asthma Control Test) questionnaire and the levels of control according to GINA (Global Initiative for Asthma) to establish the cut-off points for the ACT and evaluate its relationship with lung function and fractionated exhaled nitric oxide level (FeNO).

Patients and methods

A multi-centre prospective study including 441 patients followed up in an outpatient Chest Clinic. A clinical protocol was followed, and FeNO, spirometry and ACT performed. Disease was classified according to levels of control using GINA. The study analysed sensitivity, specificity and area under the curve (ROC), and the ACT cut-off points. We studied the differences between the functional parameters and FeNO between levels of control.

Results

For controlled asthma the cut-off obtained was ACT鈮?1 (area under the curve 0.791) and for uncontrolled 鈮?8 (AUC 0.774). We found significant differences in FeNO levels and pulmonary function among ACT鈮?1 and ACT鈮?8, although only 26.3%of patients with ACT鈮?8 had a FEV1 <80%and 40%higher FeNO (鈮?5 ppb). We found a correlation between baseline FEV1 and ACT (r=0.19, P<0.01) and between ACT and FeNO (r=鈭?.16, P<0.01).

Conclusions

The cut-off points would be, for controlled asthma ACT鈮?1, partly controlled asthma ACT=19鈥?0 and uncontrolled asthma ACT鈮?8. A more complete assessment would require including monitoring operating parameters and FeNO.