Table 1 Demographic characteristics of the autism and control groups
From: Health-related risky behaviors in Chinese adolescents with autism: a cross-sectional study
Items | Autism group (n = 150) | Control group (n = 150) | Z/χ2 | P |
|---|---|---|---|---|
Age, median (min, max) | 14.5 (12.0, 19.1) | 14.5 (12.1, 19.0) | 0.401 | 0.688 |
Gender | Â | Â | 0.00 | 0.9999 |
 Female | 24 | 24 |  |  |
 Male | 126 | 126 |  |  |
IQ (Mean ± standard deviation) | 91.09 ± 4.72 | – |  |  |
Residence | Â | Â | 1.998 | 0.368 |
 City | 130 | 137 |  |  |
 Town | 17 | 10 |  |  |
 Rural area | 3 | 3 |  |  |
Paternal education (%) |  |  | 33.48 |  < 0.001 |
 Primary school | 1 (0.7) | 2 (1.33) |  |  |
 Middle school | 6 (4.0) | 26 (17.33) |  |  |
 High school | 26 (17.3) | 40 (26.67) |  |  |
 Undergraduate | 88 (58.7) | 77 (51.33) |  |  |
 Postgraduate | 29 (19.3) | 5 (3.34) |  |  |
Maternal education (%) |  |  | 37.01 |  < 0.001 |
 Primary school | 1 (0.7) | 6 (4.00) |  |  |
 Middle school | 5 (3.3) | 25 (16.67) |  |  |
 High school | 25 (16.7) | 40 (26.67) |  |  |
 Undergraduate | 95 (63.3) | 75 (50.00) |  |  |
 Postgraduate | 24 (16.0) | 4 (2.66) |  |  |
Family relationship (%) | Â | Â | 2.013 | 0.57 |
 Harmonious | 103 (68.7) | 106 (70.67) |  |  |
 Fine | 42 (28.0) | 35 (23.33) |  |  |
 Disharmony | 4 (2.7) | 8 (5.33) |  |  |
 Parents divorced | 1 (0.7) | 1 (0.67) |  |  |
Financial situation (annual income CNY, %) | Â | Â | 16.385 | 0.003 |
 < 30,000 | 19 (12.7) | 12 (8.0) |  |  |
 30,000–50,000 | 42 (28.0) | 21 (14.0) |  |  |
 50,000–70,000 | 29 (19.3) | 33 (22.0) |  |  |
 70,000–100,000 | 31 (20.7) | 30 (20.0) |  |  |
 > 100,000 | 29 (19.3) | 54 (36.0) |  |  |
Family history of mental illness (%) | Â | Â | 5.91 | 0.015 |
 Positive | 14 (9.33) | 4 (2.67) |  |  |
 Negative | 136 (88.0) | 146 (97.33) |  |  |