Indicator of familial ASD liability | Relative recurrence risk | Source |
---|---|---|
Mother with ASD-affected sibling* | 3 | Bai D, et al. [18] |
Father with ASD-affected sibling* | 2 | |
Mother and father with upper quintile of QATs | 1.85 | Lyall K, et al. [19]) |
Either mother or father with upper quintile of QATs | 1.52 | |
Mother with ASD-affected sibling* and elevated QATs | [~6.5]** | Second Generation Project |