Example of a family within the LFLSAD.
Families were included based on the combination of a parent with SAD (‘proband’; depicted in red) and a proband's child with SAD (red) or (sub)clinical SA (orange). In addition, family members of two generations were invited, independent from the presence of SAD within these family members (no SAD: light blue; did not participate: gray). Grandparents (generation 0; white) were not invited for participation. This family is slightly modified to guarantee anonymity; however, the number of family members and the frequency of (sub)clinical SAD are depicted truthfully. Squares and circles represent men and women, respectively. This figure is a reprint of Fig. 1 of Bas-Hoogendam et al., 2018, International Journal of Methods in Psychiatric Research [100].