Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Hong Kong.
Department of Computer Science, City University of Hong Kong, Kowloon Tong, Hong Kong.
Int J Methods Psychiatr Res. 2018 Dec;27(4):e1718. doi: 10.1002/mpr.1718. Epub 2018 May 15.
Attention deficit hyperactivity disorder (ADHD) and learning difficulties (LDs) are proposed as 2 overlapping disorders. The objective of this study was to investigate the handwriting performance in ADHD and comorbid ADHD-LD adolescents.
The study examined the Chinese and English handwriting performance and sensorimotor skills of 32 ADHD, 12 ADHD-LD, and their matched controls.
Participants with ADHD had comparable writing time and speed, but the readability was lower than their controls. Participants with ADHD-LD had lower writing speeds in both Chinese and English handwriting than their controls. The ADHD and ADHD-LD groups also showed larger variations in either speed or pen pressure than their controls. Chinese handwriting assessment effectively classified ADHD and ADHD-LD with good sensitivity and positive predictive value.
Clinicians should be aware of the fundamental difference between the 2 disorders and make good use of handwriting assessment as a reference to deliver effective therapies and trainings.
注意力缺陷多动障碍（ADHD）和学习困难（LDs）被认为是两种重叠的障碍。本研究旨在调查 ADHD 及合并 ADHD-LD 青少年的书写表现。
本研究检查了 32 名 ADHD 患者、12 名 ADHD-LD 患者及其匹配对照组的中文和英文书写表现和感觉运动技能。
ADHD 患者的书写时间和速度相当，但可读性低于对照组。ADHD-LD 患者的中文和英文书写速度均低于对照组。ADHD 和 ADHD-LD 组在速度或笔压方面的变化也大于对照组。中文书写评估能有效区分 ADHD 和 ADHD-LD，具有良好的敏感性和阳性预测值。
临床医生应意识到这两种障碍的根本区别，并充分利用书写评估作为参考，提供有效的治疗和训练。
