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# Table 6 Comparison of results between the main (RRBI’s from the ADI-R C domain) and additional analyses: SRS-2 Autism Mannerisms (AM); ADI-R C + ADI-R reciprocal social interaction (A); and SRS-2 AM + SRS – social cognition (SC)). Significant B-estimates and *q* values are displayed in bold (*q* < 0.05) and estimates with a value of *q* < 0.1 are displayed as regular text. Results are FDR-corrected

Group (n) | Regions associated with RRBI’s on the ADI-R C domain & SRS-2 AM, and when correcting for social cognition symptoms | ||||||
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Males ADI-R C (88) | Nothing | ||||||

Males ADIR-C + A | Bilateral cerebellum C. Decreased volume (Right: B = − 1092.29, q= 0.014; Left: B = − 1198.49, q = 0.070) | R. Inferior frontal G. Increased volume ( B = 81.99, q = 0.093) | |||||

Males SRS-2 AM | R. Pallidum Increased volume ( = B5.99, = q0.005) | R. Postcentral S. Reduced volume ( B = − 48.93, q = 0.059)Reduced area ( B = − 21.74, q = 0.060) | |||||

Males SRS-2 AM + SC | R. Precentral G. Reduced area ( B = − 27.92, q = 0.002) | R. Central G. Reduced area ( B = − 32.08, q = 0.032) | |||||

Females ADI-R C (62) | R. Intraparietal S. Increased thickness ( = B0.037, = q0.012)Reduced area ( B = − 120.61, q = 0.072) | R. Orbital G. Increased thickness ( B = 0.05, q = 0.056) | R. Inferior Frontal Orbital G. Increased thickness ( B = 0.07, q = 0.065) | L. Superior Frontal G. Reduced area ( B = − 130.44, q = 0.072) | R. Middle Frontal G. Increased area ( B = 95.29, q = 0.072) | ||

Females ADIR-C + A | R. Intraparietal S. Increased thickness ( = B0.041, = q0.008)Reduced area ( B = − 115.97, q = 0.075) | R. Orbital G. Increased volume ( = B161.09, = q0.007) | R. Inferior Frontal Orbital G. Increased thickness ( B = 0.075, q = 0.055) | R. Postcentral G. Increased volume ( = B154.48, = q0.003) | R. Postcentral S. Increased thickness ( = B0.026, = q0.031) | ||

Females SRS-2 AM (62) | L. Intraparietal S. Increased thickness ( = B0.006, = q0.049) | R. Orbital G. Increased thickness ( = B0.013, = q0.008) | L. Lateral Orbital S. Increased thickness ( = B0.017, = q0.007) | R. Supramarginal G. Increased area ( B = 18.69, q = 0.007) | |||

Females SRS-2 AM + SC | L. Angular G. Increased thickness ( = B0.023, = q0.018)Bi. Angular G. Reduced area (Left: B = − 33.04, q = 0.054; right: B = − 31.05, q = 0.051) | L. Lateral orbital S. Reduced area ( = B− 8.13, = q0.003) | Bi. Middle frontal S. Reduced thickness (Left: B = − 0.009, q = 0.071; right: B = − 0.011, q = 0.067) | R. Supramarginal G. Increased area ( B = 33.04, q = 0.063) | R. Superior parietal G. Increased area ( B = 26.44, q = 0.066) | R. Superior frontal G. Reduced thickness ( B = − 0.009, q = 0.055) | R. Postcentral G. Reduced thickness ( B = − 0.017, q = 0.056) |