https://www.frontiersin.org/articles/10 ... 56084/full
"Autism spectrum disorder (ASD) is characterized as a very heterogeneous child-onset disorder. The clinical picture including the severity of the core deficits of ASD varies significantly among individuals leading to individually different degrees of functional qualities in ASD as well as to difficulties in correctly recognizing and diagnosing ASD (1).
One key aspect of the heterogeneity of ASD symptomatology appears to be the heterogeneity in intelligence quotient (IQ) (2). For example, Fombone (3) reported of 20 epidemiological studies of ASD, published from 1966 to 2001 and deduced that the median percentage of individuals with ASD and cognitive impairment (IQ < 70) ranged from 40 to 100% (mean 70%). This indication is also in line with statements in the current German and British ASD diagnostic guidelines (4, 5). In the early 2000s another large epidemiological study reported that an IQ < 70 was observed in only 50% of children with ASD (6), while a more recent epidemiological study (7) reported a further decline toward an amount of 31% of children with ASD, that were classified in the range of cognitive impairment (IQ < 70). The latter study further reported that 25% of children with ASD were in the borderline range (IQ 71–85), and 44% had IQ scores in the average to above average range (IQ ≥ 85). Unfortunately, epidemiological studies report about their individuals with ASD with above average IQ less accurately or rather insufficiently, i.e., either offer no information (8) or summarize the percentages of the group with mean and the group with above average IQ (7, 9). Compared to the accuracy of the presentation of IQ data in epidemiological samples, data in clinical studies are often even less precise. Nevertheless, one clinical study with slightly more precise information on IQ in ASD reported that 23% of the participants had an IQ < 85, while 45% had an average IQ, and 32% had an IQ above average (10). Another clinical study divided the children with ASD in a group with an IQ < 80 (32%, mean composite IQ of 66 ± 11) and IQ > 80 (68%, mean composite IQ of 99 ± 13) (11). These numbers deviate from those in epidemiological studies, as they report of substantially more individuals with above average IQ and fewer individuals with below average IQ including ID. Finally, we recently observed in a larger sample of patients, who presented in specialized outpatient clinics for ASD, a bimodal IQ distribution within ASD individuals [38.2% below average intelligence (i.e., IQ < 85), 40% with above average intelligence (IQ > 115) and 21.8% with an average intelligence (IQ between 85 and 115), see Figure 1]. In addition, we could show that only a third of ASD individuals, included in these analyses, are on average under the age of ten when receiving their ASD diagnosis, while another third of ASD individuals are on average older than 20 years when they received an ASD diagnosis. However, these cross-sectional clinical findings are observations, which require further clarification."
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https://www.frontiersin.org/articles/10 ... 56084/full
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ADHD-I(diagnosed) ASD-HF(diagnosed)
RDOS scores - Aspie score 131/200 - neurotypical score 69/200 - very likely Aspie