Clinic for Neurology and Psychiatry for Children and Youth, Belgrade, Serbia.
University of Gothenburg, Sweden.
J Atten Disord. 2023 Sep;27(11):1296-1305. doi: 10.1177/10870547231174035. Epub 2023 May 18.
The QbTest that combines a continuous performance task (CPT) with a motion-tracking system may help identify attention deficit hyperactivity disorder (ADHD). This study examined the structure and diagnostic ability of the QbTest in children and adolescents.
Retrospective data from 1,274 children and adolescents were analyzed. The study assessed data on a principal component analysis (PCA), sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV).
The QbActivity component included the variables micro-events, distance, area, and time active; the QbImpulsivity included normalized commissions and commissions (anticipatory errors were added in a version for 6-12-year-olds only); and the QbInattention included omissions, reaction time, and reaction time variation. Sensitivity ranged between 22% and 50%, specificity 79% and 96%, PPVs 40% and 95%, and NPVs 24% and 66%.
The structure of the QbTest with three cardinal parameters and nine/ten CPT and motion analysis variables was supported. The diagnostic accuracy was found to be poor to moderate. Given that this is a retrospective study, the interpretation of diagnostic accuracy should be considered within this context.
结合连续表现任务（CPT）和运动跟踪系统的 QbTest 可能有助于识别注意缺陷多动障碍（ADHD）。本研究探讨了 QbTest 在儿童和青少年中的结构和诊断能力。
对 1274 名儿童和青少年的回顾性数据进行了分析。该研究评估了主成分分析（PCA）、灵敏度、特异性、阳性预测值（PPV）和阴性预测值（NPV）的数据。
QbActivity 成分包括微事件、距离、面积和活动时间等变量；QbImpulsivity 包括归一化错误和错误（仅在 6-12 岁儿童的版本中添加预期错误）；QbInattention 包括遗漏、反应时间和反应时间变化。灵敏度在 22%至 50%之间，特异性在 79%至 96%之间，PPV 在 40%至 95%之间，NPV 在 24%至 66%之间。
支持具有三个主要参数和九个/十个 CPT 和运动分析变量的 QbTest 结构。诊断准确性被发现为差到中等。鉴于这是一项回顾性研究，应在该背景下考虑诊断准确性的解释。
