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. 2022 Jan 20;10:e12836. doi: 10.7717/peerj.12836

Table 3. Proportions of education levels, biological sex, and presence of a diagnosis within the No ADHD diagnosis and ADHD diagnosis groups.

No ADHD diagnosis
(n = 206)
ADHD diagnosis
(n = 201)
N (%) N (%) χ 2 p
Education 6.92 .031
High school 52 (25%) 73 (38%)
Bachelor 86 (42%) 71 (37%)
Post-bachelor 66 (32%) 50 (26%)
Biological sex 18.20 .000
Male 68 (33%) 30 (15%)
Female 138 (67%) 171 (85%)
Depression (PHQ) 1.77 .208
Low 143 (69%) 127 (63%)
High 63 (31%) 74 (37%)
Anxiety (STAI-6) 0.58 .487
Low 101 (49%) 91 (45%)
High 105 (51%) 110 (55%)
ADHD (ASRS) 65.78 .000
Low 112 (54%) 32 (16%)
High 94 (46%) 169 (84%)
Diagnoses
Depression 83 (40%) 132 (66%) 26.29 .000
Anxiety 79 (38%) 127 (63%) 25.10 .000
Other 28 (14%) 40 (20%) 2.84 .092
No diagnosis 97 (47%) 32 (16%) 46.15 .000

Notes.

High school = High school and college (1–2 years programs). Depression Low refers to individuals with a score inferior to 15. Depression High refers to individuals with a score equal or superior to 15. Anxiety Low refers to individuals under the mean. Anxiety High refers to individuals above the mean. ADHD low refers to individuals with a score inferior to 20. ADHD high refers to individuals with a score equal or superior to 20. Percentages refers to ratio within groups. For example, 25% of individuals with no ADHD diagnosis have a high school degree. For diagnoses, percentages refer to the presence of a disorder within the group. For example, 40% of individuals with no ADHD diagnosis have a diagnosis of depression.