网上查到的文章
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5391033/

主要摘要：
Hierarchical cluster analyses were used to detect three subgroups in a sample of children with Pervasive Developmental Disorder-Not Otherwise Specified (PDD-NOS) evaluated at ages 2 and 4. At age 2, Cluster 1 demonstrated few autism symptoms and high cognitive scores; 60% no longer met criteria for PDD at 4. Cluster 2 exhibited more autism symptoms and lower cognitive scores at 2; 89.5% met criteria for ASD at 4. Cluster 3 had the lowest cognitive scores and most impaired social/communication skills at 2, but no repetitive behaviors; 60% diagnosed with Autistic Disorder at 4. Results shed light on outcomes for different PDD-NOS types and raise questions regarding the increased importance of repetitive behaviors in DSM-5.

也就是说60%在两岁发现少量自闭症症状但是认知得分高的PDD-NOS的小孩在4岁就没有被诊断成PDD-NOS（也就是说就是nt），但是更多自闭症表现同时认知得分低的89.5%在4岁被诊断成自闭症ASD，同时即使认知得分非常低，但是没有重复行为的，40%在4岁没有被诊断成自闭症，所以现在把刻板行为看做很重要的标准，因为如果没有刻板行为，哪怕认知低也比有刻板行为的分组发展要好，而认知得分高的哪怕有自闭症症状，很大概率就是会发展很好，成为nt

Several studies have found that children with PDD-NOS were more likely than those with other ASD diagnoses to achieve “optimal outcomes” as they grew older. An “optimal outcome” refers to children who were diagnosed with an ASD at an early age but no longer demonstrate ASD symptoms when revaluated later in development. A study by Sutera and colleagues (2007) found that 39% of their sample of 11 children diagnosed with PDD-NOS at approximately 2 years of age no longer met criteria for an ASD by the time they were 4-years-old. This rate of achieving “optimal outcomes” by children with PDD-NOS was significantly greater than that of children diagnosed with Autistic Disorder at 11% (Sutera et al. 2007). This pattern of children with PDD-NOS no longer meeting criteria for an ASD at age 4 has been demonstrated in several other studies (Berry 2009; Helt et al. 2008; Lord et al. 2006). Berry and colleagues (2009) looked at diagnostic outcomes for children diagnosed with PDD-NOS at age 2 when re-evaluated at age 4 and found several factors to be predictive of “optimal outcomes” at age 4 (Berry 2009). These included better motor abilities early in development as reported by the parents, low symptom severity at initial diagnosis, presence of few repetitive behaviors, higher adaptive skills as measured by parent-report, and higher expressive language abilities on a developmental assessment measure (Berry 2009). These findings suggest that there may be patterns of characteristics within PDD-NOS that might provide information about potential future outcomes.

另外诊断为PDD-NOS的人大部分在4岁发展都比较正面，有40%小孩2岁诊断为PDD-NOS的在4岁不再符合ASD的诊断标准

另外，诊断时父母报告有早期更好的运动能力、初始诊断时较低的症状严重程度、更少出现重复行为、父母报告测量的更高的适应能力以及发展评估测量的更高的表达语言能力都代表未来的发展更加乐观，可以做个参考
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修改:sdali FROM 27.125.156.*
FROM 27.125.156.*

嗯，从这个结果来看，也支持这句话
【 在 ada11111 的大作中提到: 】
: 只要智商正常就是正常人。
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FROM 27.125.156.*

其实从这个论文，不是隐藏在普通人

他们就是普通人，到四岁不被诊断为pdd，也就是nt

这个论文结论：刻板行为非常重要
【 在 mercyrune 的大作中提到: 】
: 这个就是郭分的第三类吧，有广泛性发育障碍，没有明显刻板行为，小的时候很难区分，经过干预支持，很可能隐藏在普通人里面。
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修改:sdali FROM 27.125.156.*
FROM 27.125.156.*

不不，文章说了2岁pdd，60% 4岁不是pdd，也就是nt，如果当时认知很好的话

pdd是个很宽泛的标准，所以才被取消

其实就是简单总结：如果两岁有些症状，比如不应名举个例子，但是认知OK，同时刻板行为少，60%概率其实是个正常人，注意是正常人，不是所谓谱系
【 在 mercyrune 的大作中提到: 】
: 问题在于两岁时候一般是不确诊为asd的，一般让随诊。确实有一部分到了四岁依旧存在pdd的情况，到了年龄依然存在障碍，自然被化为asd范围了。所以两岁的pdd到了4岁又认为不是asd的情况很正常阿。。。。
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FROM 27.125.156.*

PDD-NOS 症状，其实就是现在所谓疑似或者轻度自闭症（其实这些就是自闭症所谓的症状）

Symptoms included:
Atypical or inappropriate social behavior
Uneven skill development (motor, sensory, visual-spatial organizational, cognitive, social, academic, behavioral)
Poorly developed speech and language comprehension skills
Difficulty with transitions
Deficits in nonverbal and/or verbal communication
Increased or decreased sensitivities to taste, sight, sound, smell and/or touch
Perseverative (repetitive or ritualistic) behaviors (i.e., opening and closing doors repeatedly or switching a light on and off )
【 在 mercyrune 的大作中提到: 】
: 对啊，很正常啊，国内一般没两岁就确诊为asd的，多认为迟缓，让随诊，孩子还有发育空间。一般是到了三四岁才确诊。
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FROM 27.125.156.*