Reliability and predictors of resistive load detection in children with persistent asthma: a multivariate approach.
Reliability and predictors of resistive load detection in children with persistent asthma: a multivariate approach.
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DOI：
10.3109/02770903.2014.955188
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发表时间：
2015-03
期刊：
影响因子：
--
通讯作者：
Humphries CT
中科院分区：
文献类型：
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作者：
Harver A;Dyer A;Ersek JL;Kotses H;Humphries CT
电阻负荷检测任务使心理物理结果的个体差异分析成为可能。本研究的目的是确定在完成多次测试的持续性哮喘儿童中阻力负荷检测的可靠性和预测因素。夏洛特和俄亥俄州大学的机构审查委员会都批准了这项研究方案。对75名8 ~ 15岁哮喘儿童进行了吸气阻力负荷检测。每个孩子参加了大约每两周一次的四个实验课程。多变量分析被用来描述任务绩效的预测因素。确定每个孩子的电阻负荷检测的可靠性，并在两组儿童中研究负荷检测结果的预测因素：在所有四个会话中可靠地执行的儿童（n = 31）和在三个或更少会话中可靠地执行的儿童（n = 44）。三个因素（发育、症状和依从性）占变量方差的66.3%，预测负荷检测结果方差的38.7%（多个R = 0.62，p = 0.004），并在80.6%的儿童中将性能正确分类为可靠或不可靠（χ2（12）= 28.88，p = 0.004）。认知和身体发育、症状体验评估和依从性相关行为1）在影响哮喘儿童气流阻塞感知的变量之间的相互关系中占很大比例，2）区分儿童在阻力负荷检测任务中的可靠性。
Resistive load detection tasks enable analysis of individual differences in psychophysical outcomes. The purpose of this study was to determine both the reliability and predictors of resistive load detection in children with persistent asthma who completed multiple testing sessions. Both UNC Charlotte and Ohio University institutional review boards approved the research protocol. The detection of inspiratory resistive loads was evaluated in 75 children with asthma between 8 and 15 years of age. Each child participated in four experimental sessions that occurred approximately once every two weeks. Multivariate analyses were used to delineate predictors of task performance. Reliability of resistive load detection was determined for each child, and predictors of load detection outcomes were investigated in two groups of children: those who performed reliably in all four sessions (n = 31) and those who performed reliably in three or fewer sessions (n = 44). Three factors (development, symptoms, and compliance) accounted for 66.3% of the variance among variables that predicted 38.7% of the variance in load detection outcomes (Multiple R = 0.62, p = .004) and correctly classified performance as reliable or less reliable in 80.6% of the children (χ2(12) = 28.88, p = .004). Cognitive and physical development, appraisal of symptom experiences, and adherence-related behaviors 1) account for a significant proportion of the interrelationships among variables that affect perception of airflow obstruction in children with asthma and 2) differentiate between children who perform more or less reliably in a resistive load detection task.