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. 2023 Sep 6;18(9):e0290001. doi: 10.1371/journal.pone.0290001

Table 1. Demographic characteristics of autistic, non-autistic neurodivergent and neurotypical participants.

Variable Autistic (A) participants
(n = 272)
Non-autistic neurodivergent
(ND) participants
(n = 78)
Neurotypical
(NT) participants
(n = 61)
Group
comparisons
Gender A < NT*, ND**
    Men (including trans men) 89 (32.7%) 34 (43.9%) 33 (54.1%)
    Women (including trans women) 163 (59.9%) 43 (55.1%) 27 (44.3%)
    Non-binary 20 (7.4%) 0 (0.0%) 0 (0.0%)
    Prefer not to say 0 (0.0) 1 (1.3%) 1 (1.6%)
Age A > NT *** A = ND, ND = NT
    18–25 34 (12.5%) 7 (9.0%) 9 (14.8%)
    26–35 57 (21.0%) 23 (29.5%) 13 (21.3%)
    36–46 66 (24.3%) 17 (21.8%) 15 (24.6%)
    46–55 80 (29.4%) 22 (28.2%) 22 (36.1%)
    56–65 32 (11.8%) 6 (7.7%) 1 (1.6%)
    66–75 3 (1.1%) 2 (2.6%) 0 (0.0%)
    76+ 0 (0.0%) 1 (1.3%) 0 (0.0%)
    Prefer not to say 0 (0.0%) 0 (0.0%) 1 (1.6%)
Ethnicity A > NT*, A = ND, ND = NT
    White British 217 (79.8%) 70 (90.9%) 53 (86.9%)
    Other White backgrounds 28 (10.3%) 3 (3.4%) 0 (0.0%)
    Mixed/Multiple ethnic groups 11 (4.0%) 1 (1.3%) 2 (3.3%)
    Black/African/Caribbean/Black
British
2 (0.7%) 1 (1.3%) 2 (3.3%)
    Asian/Asian British 0 (0.0%) 1 (1.3%) 3 (4.9%)
    Other ethnic groups 3 (1.1%) 1 (1.3%) 1 (1.6%)
    Prefer not to say 0 (0.0%) 1 (1.3%) 0 (0.0%)
Education
A < NT*, ND < NT***, A = ND,
    Bachelor’s Degree 75 (27.6%) 24 (30.8%) 19 (31.1%)
    Master’s degree 64 (23.5%) 22 (28.2%) 32 (52.5%)
    A/AS Level1 27 (9.9%) 6 (7.7%) 1 (1.6%)
    Doctorate 19 (7.0%) 3 (3.8%) 2 (3.3%)
    GCSEs2 19 (7.0%) 4 (5.1%) 0 (0.0%)
    BTEC3 15 (5.5%) 5 (6.4%) 2 (3.3%)
    Higher National Diploma3 13 (4.8%) 0 (0.0%) 1 (1.6%)
    Post Graduate Certificate 11 (4.0%) 6 (7.7%) 0 (0.0%)
    Post Graduate Diploma 8 (2.9%) 2 (2.6%) 2 (3.3%)
    No formal qualifications 7 (2.6%) 2 (2.6%) 0 (0.0%)
    Foundation degree 6 (2.2%) 2 (2.6%) 1 (1.6%)
    GNVQ3 4 (1.5%) 1 (1.3%) 0 (0.0%)
    Professional qualification 4 (1.5%) 1 (1.3%) 1 (1.6%)
Employment status A < ND*, NT*,
ND < NT***
    Employed full time 102 (37.6%) 53 (67.9%) 49 (80.3%)
    Employed part time 60 (21.8%) 10 (12.8%) 11 (18.0%)
    Unemployed (looking for work) 22 (9.5%) 3 (3.8%) 0 (0.0%)
    Self-employed 26 (9.6%) 3 (3.8%) 1 (1.6%)
    Unemployed (not looking for work) 21 (7.7%) 1 (1.3%) 0 (0.0%)
    Student 13 (5.0%) 1 (1.3%) 0 (0.0%)
    Volunteer 12 (4.4%) 0 (0.0%) 0 (0.0%)
    Retired 7 (2.6%) 5 (6.4%) 0 (0.0%)
    Full time Parent/Carer 6 (2.2%) 0 (0.0%) 0 (0.0%)
    Unemployed (with independent
means)
1 (0.4%) 0 (0.0%) 0 (0.0%)
    Apprentice or intern 1 (0.4%) 1 (1.3%) 0 (0.0%)
    Temporary employment 1 (0.4%) 0 (0.0%) 0 (0.0%)
    Employed (unspecified) 0 (0.0%) 1 (1.3%) 0 (0.0%)
    Prefer not to say 0 (0.0%) 0 (0.%) 0 (0.0%)
Income A < ND*, NT*
ND < NT*
    < £10,000 63 (23.2%) 6 (7.7%) 0 (0.0%)
    £10,000 - £19,999 66 (24.3%) 10 (12.8%) 1 (1.6%)
    £20,000 - £29,999 61 (22.4%) 13 (16.7%) 4 (6.6%)
    £30,000 - £39,999 26 (9.6%) 15 (19.2%) 20 (32.8%)
    £40,000 - £49,999 13 (4.8%) 14 (18.0%) 8 (13.1%)
    £50,000 - £59,999 6 (2.2%) 1 (1.3%) 3 (4.9%)
    £60,000 - £79,999 10 (3.7%) 5 (6.4%) 8 (13.1%)
    £80,000 - £99,999 3 (1.1%) 3 (3.8%) 6 (9.8%)
    £100,000 - £149,999 4 (1.5%) 1 (1.3%) 6 (9.8%)
    > £150,000 0 (0.0%) 0 (0.0%) 0 (0.0%)
    Prefer not to say 20 (7.4%) 3 (3.8%) 5 (8.2%)
Satisfaction with employment A*, ND* < NT
    Satisfied 121 (44.5%) 42 (53.8%) 52 (85.2%)
    Uncertain 65 (23.9%) 14 (18.0%) 6 (9.8%)
    Dissatisfied 79 (29.0%) 17 (21.8%) 1 (1.6%)
    Prefer not to say 1 (0.4%) 2 (2.6%) 2 (3.3%)
    Not applicable 6 (2.2%) 3 (3.8%) 0 (0.0%)
Number of different employers A > NT*, ND > NT***, A = ND,
    1–2 28 (10.3%) 17 (21.8%) 19 (31.1%)
    2–4 57 (21.0%) 17 (21.8%) 23 (37.7%)
    4–6 50 (18.4%) 15 (19.2%) 6 (9.8%)
    More than 6 128 (47.1%) 25 (32.1%) 10 (16.4%)
    None 7 (2.6%) 4 (5.1%) 2 (3.3%)
    Prefer not to say 2 (0.7%) 0 (0.0%) 1 (1.6%)

* p < .001

** p = .002

*** p = < .05.

1 AS-A-Levels are qualifications in the UK that are typically taken between 16 and 18 years old.

2 GCSEs are qualifications in the UK that are typically taken between 14 and 16 years old.

3 BTECs, GNVQs and Higher National Diplomas are vocational qualifications in the UK. The last GNVQs were awarded in 2007. BTECs are approximately equivalent to GCSE and AS/A-Level qualifications. Higher National Diplomas are approximately equivalent to years one and two of a Bachelor’s Degree.