哮喘儿童中C-ACT和客观参数间的相关性
2011/12/26
摘要
目的:儿童哮喘控制测试(C-ACT)包含7个项目,为自我实施的问卷调查。目前,该测试已经用于评价患儿哮喘控制水平的一个工具。本试验旨在研究C-ACT 除了能反映临床表现外,是否能反映患儿的气流受限和气道炎症。
方法:入选门诊就诊时年龄为5~11岁的哮喘患儿,对其进行肺功能和呼出气一氧化氮(FeNO)评价。要求患儿和其父母回答日本版C-ACT中的问题。
结果:258名患儿(176名男性,中位年龄9岁)中,C-ACT 评分与第一秒用力呼气体积百分数(%FEV1)成正相关(r = 0.317,P<0.001)。采用受试者工作特征曲线来描述C-ACT鉴别正常肺功能哮喘患儿的准确性,该准确性为71.5%(95% CI = 62.8-80.2%, P<0.001),而基于Youden指数,该评分的最佳截止值为23(敏感性为78%,特异性为54%)。相反,C-ACT评分与FeNO值无相关性。
结论:这些结果显示,可将C-ACT截止值定为23,用于鉴别哮喘控制较好、肺功能正常的患儿。有必要进一步开发易于使用的问卷调查,来评价哮喘患儿的气道炎症程度。
(苏楠 审校)
J Asthma. 2011 Dec;48(10):1076-80. Epub 2011 Nov 2.
Association between the Results of the Childhood Asthma Control Test and Objective Parameters in Asthmatic Children.
Ito Y, Adachi Y, Itazawa T, Okabe Y, Adachi YS, Higuchi O, Katsunuma T, Miyawaki T.
Source
Department of Pediatrics, Faculty of Medicine, University of Toyama , Toyama , Japan.
Abstract
OBJECTIVE:The Childhood Asthma Control Test (C-ACT), aseven-item,self-administered questionnaire, has been used as a tool to assess the control level in children with asthma. The aim of this study was to determine whether the C-ACT reflects airflow limitation and airway inflammation in addition to clinical manifestations.
METHODS:Asthmatic children aged 5-11 years who were able to perform the lung function test and fractional exhaled nitric oxide (FeNO) evaluation correctly were recruited during their regular visits. Children and their parents were asked to answer the officially developed Japanese version of the C-ACT.
RESULTS:Among 258 children (176 boys, median age 9 years), there was a significant positive correlation between the C-ACT score and the percent predicted forced expiratory volume in 1 s (%FEV(1)) (r = 0.317, p < .001). The accuracy of the C-ACT for identifying asthmatic subjects with normal lung function (%FEV(1) >80%) described as the area under the receiver operating characteristic curve was 71.5% (95% CI = 62.8-80.2%, p < .001), and based on the Youden index the optimal cutoff score was 23 (sensitivity of 78% and specificity of 54%). In contrast, there was no relationship between the C-ACT score and the FeNO value.
CONCLUSIONS:These results suggest that a cutoff score of 23 for the C-ACT could be useful for identifying children with well-controlled asthma and normal lung function. Further studies are warranted to develop an easy-to-use questionnaire to assess the extent of airway inflammation in children .
J Asthma. 2011 Dec;48(10):1076-80. Epub 2011 Nov 2.
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一种能鉴别轻度至重度儿童哮喘高风险婴儿的简单工具:持续哮喘预测评分
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