Fig. 4

a-b. Education and Occupation Skill Level Distributions. Legend: a: Education level: 1 = less than 9 years, 2 = 9 years, 3 = 1–2 years of high school, 4 = 3 years of high school, 5 = 1–2 years of undergraduate college, 6 = 3 or more years of undergraduate college, 7 = graduate studies. Missing data; ADHD+DCD (1), RM group (3). b: International Standard Classification of Occupation (See methods section for a detailed description); 0 = No vocation, 1 = Manual work not requiring education beyond elementary school level, 2 = Requiring education programmes at upper secondary and tertiary level of no more than 2 years, 3 = Requiring education programmes of 2–3 years in length, 4 = Requiring theoretical and research-oriented education. Missing data; ADHD+DCD (1), PM (3), RM (3). Abbreviations: Attention-Deficit hyperactivity Disorder with Developmental Coordination Disorder (ADHD+DCD, n = 62), Registry Matched group (RM Group, n = 307), Population Matched Group (PM Group, n = 51)