Table 3 Table demonstrating the demographics within our sample between groups, with P values reported
Characteristic | Autistic (n = 1129) | Non-autistic (n = 1176) | Statistical significance |
|---|---|---|---|
Mean age (SD) | 40.9 (14.5) | 41.6 (15.5) | 0.39 |
Age categories, N (%) | Â | Â | Â |
 Under 29 | 297 (26.31) | 310 (26.36) |  |
 30–39 | 237 (20.99) | 237 (20.15) |  |
 40–49 | 243 (21.52) | 240 (20.41) |  |
 50–59 | 204 (18.07) | 210 (17.86) |  |
 60–69 | 103 (9.12) | 118 (10.03) |  |
 70 +  | 26 (2.30) | 49 (4.17) |  |
 Missing | 19 (1.68) | 12 (1.02) |  |
Sex assigned at birth N (%) | Â | Â | 0.01 |
 Male | 413 (36.58) | 372 (31.63) |  |
 Female | 716 (63.42) | 804 (68.37) |  |
 Missing | 0 | 0 |  |
Ethnicity, N (%) | Â | Â | 0.02 |
 White | 994 (88.04) | 999 (84.95) |  |
 Mixed race | 76 (6.73) | 68 (5.78) |  |
 Asian | 17 (1.51) | 43 (3.66) |  |
 Latin/Hispanic | 6 (0.53) | 22 (1.87) |  |
 Arab/Middle Eastern | 0 | 17 (1.45) |  |
 Jewish | 17 (1.51) | 17 (1.45) |  |
 Black | 6 (0.53) | 9 (0.77) |  |
 OTHER | 10 (0.89) | 1 (0.09) |  |
 Missing | 3 (0.27) | 0 |  |
Education |  |  |  < 0.0001 |
 No Formal qualifications | 52 (4.61) | 16 (1.36) |  |
 Further vocational qual | 207 (18.33) | 137 (11.65) |  |
 Secondary/High School | 205 (18.16) | 169 (14.37) |  |
 University (undergraduate) | 337 (29.85) | 346 (29.42) |  |
 University (postgraduate) | 326 (28.88) | 507 (43.11) |  |
 Missing | 2 (0.18) | 1 (0.09) |  |
Country of residence, N (%) |  |  |  < 0.0001 |
 UK | 802 (71.04) | 739 (62.84) |  |
 USA | 113 (10.01) | 171 (14.54) |  |
 Germany | 30 (2.66) | 33 (2.81) |  |
 Ireland | 13 (1.15) | 27 (2.30) |  |
 Canada | 23 (2.04) | 22 (1.87) |  |
 Australia | 31 (2.75) | 21 (1.79) |  |
 Netherlands | 29 (2.57) | 8 (0.68) |  |
 Other | 88 (7.79) | 151 (12.84) |  |
 Missing | 1 (0.09) | 4 (0.34) |  |
BMI, mean (SD) | 27.1 (7.62) | 25.9 (6.17) | 9.3 × 10–4 |
 Missing | 34 (3.01) | 34 (2.89) |  |
Daily smoker N (%) | Â | Â | 0.63 |
 No | 790 (69.97) | 812 (69.05) |  |
 Yes | 338 (29.94) | 363 (30.87) |  |
 Missing | 1 (0.09) | 1 (0.09) |  |
Current alcohol frequency, N (%) |  |  |  < 0.0001 |
 0 | 658 (58.28) | 459 (39.03) |  |
 1–2 | 291 (25.78) | 457 (38.86) |  |
 3–5 | 114 (10.10) | 177 (15.05) |  |
 6–7 | 65 (5.76) | 83 (7.06) |  |
 Missing | 1 (0.09) | 0 (0) |  |