“…The most frequently reported aspect of household SEP was autistic participants' educational attainment (n = 16) [12, 14, 15, 17, 19, 20, 22, 24, 27, 29, 33, 36, 43••, 44, 58, 59]. Four studies included information about parental level of education [25,26,33,58]. Only five studies reported household income [24,33,37,53], and participants' income was described in only one study [43••].…”