Motor impairment is not currently included in the diagnostic criteria or evaluation of autism. This reflects the lack of large‐scale studies demonstrating its prominence to advocate for change. We examined the prevalence of motor difficulties at the time of diagnosis in a large sample of children with autism utilizing standardized assessment, and the relationship between motor difficulties, core autism symptomology, and other prominent clinical features. Vineland Adaptive Behavior Scales were administered to children from the Western Australian Register for Autism Spectrum Disorders aged ≤6 years (N = 2,084; 81.2% males, 18.8% females). Prevalence of motor difficulties was quantified based on scores from the motor domain of the Vineland and then compared to other domains of functioning within the Vineland (communication, daily living, and socialization), the DSM criteria, intellectual level, age, and gender. Scores on the Vineland indicated that 35.4% of the sample met criteria for motor difficulties (standard score <70), a rate almost as common as intellectual impairment (37.7%). Motor difficulties were reported by diagnosing clinicians in only 1.34% of cases. Motor difficulties were common in those cases meeting diagnostic criteria for impairments in nonverbal behavior and the presence of restricted and repetitive behaviors. The prevalence of motor difficulties also increased with increasing age of diagnosis (P < 0.001). Findings from the present study highlight the need for further consideration of motor difficulties as a distinct specifier within the diagnostic criteria for ASD. Autism Res 2020, 13: 298–306. © 2019 International Society for Autism Research, Wiley Periodicals, Inc.

中文翻译：

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自闭症谱系障碍患者运动障碍的患病率：基于人群的队列分析。

运动障碍目前不包括在诊断标准或自闭症评估中。这反映出缺乏大规模研究证明其在倡导变革方面的突出地位。我们使用标准化评估评估了一大批自闭症儿童在诊断时的运动障碍患病率，以及运动障碍，核心自闭症症状和其他突出临床特征之间的关系。葡萄园适应行为量表适用于西澳大利亚州自闭症谱系障碍年龄≤6岁的儿童（N= 2084；男性81.2％，女性18.8％）。根据来自Vineland的运动领域的分数对运动障碍的患病率进行量化，然后将其与Vineland内的其他功能领域（交流，日常生活和社会化），DSM标准，知识水平，年龄和性别进行比较。在Vineland上的分数表明，35.4％的样本符合运动困难标准（标准分数<70），几乎与智力障碍（37.7％）相同。仅在1.34％的病例中，诊断为临床医生就报告了运动困难。在满足诊断标准的情况下，运动障碍很常见，这些诊断标准是针对非言语行为的障碍以及受限和重复行为的存在。运动障碍的患病率也随着诊断年龄的增加而增加（P<0.001）。从本研究中发现的结果突出表明，作为ASD诊断标准中的特殊指标，有必要进一步考虑运动困难。Autism Res 2020，13：298-306。©2019国际自闭症研究会，Wiley Periodicals，Inc.