Table 1 Demographics and clinical characteristics between Anxiety and control groups
Variable | control n = 3910 | Anxiety n = 972 | χ2/Z | p | OR(95% CI) | ||
|---|---|---|---|---|---|---|---|
Age (years), mean (SD) | 18.8 (1.1) | 18.6 (1.1) | −4.739 | 0.000*** |  | ||
BMI (kg m−2), mean (SD) | 20.1 (2.4) | 20.1 (2.6) | −0.586 | 0.558 |  | ||
Gender | |||||||
 Males, n (%) | 431 | 11.00% | 106 | 10.90% | 0.011 | 0.916 | 1.012 (0.808–1.268) |
 Females, n (%) | 3479 | 89.00% | 866 | 89.10% |  |  |  |
 Single child, n (%) | 991 | 25.30% | 258 | 26.50% | 0.587 | 0.444 | 1.064 (0.907–1.248) |
Community | |||||||
 Rural | 2820 | 72.10% | 700 | 72.00% | 0.004 | 0.947 | 1.005 (0.860–1.176) |
 Urban | 1090 | 27.90% | 272 | 28.00% |  |  |  |
 Good relationship with mother, n (%) | 3811 | 97.50% | 912 | 93.80% | 32.752 | 0.000*** | 0.395 (0.284–0.549) |
 Good relationship with father, n (%) | 3747 | 95.80% | 887 | 91.30% | 33.808 | 0.000*** | 0.454 (0.346–0.596) |
Nationality | |||||||
 Others | 517 | 13.20% | 105 | 10.80% | 4.101 | 0.043* | 1.258 (1.007–1.572) |
 Han | 3393 | 86.80% | 867 | 89.20% |  |  |  |
 Smoking, n (%) | 134 | 3.40% | 78 | 8.00% | 39.614 | 0.000*** | 2.459 (1.842–3.281) |
 Alcohol, n (%) | 580 | 14.80% | 217 | 22.30% | 31.982 | 0.000*** | 1.650 (1.385–1.965) |
Family income /year (yuan) | |||||||
 Less than 30,000, n (%) | 1624 | 41.50% | 431 | 44.30% | 3.601 | 0.308 |  |
 30,000~50,000, n (%) | 1336 | 34.20% | 328 | 33.70% |  |  |  |
 50,000~70,000, n (%) | 549 | 14.00% | 119 | 12.20% |  |  |  |
 More than 70,000, n (%) | 401 | 10.30% | 94 | 9.70% |  |  |  |
Father’s education level | |||||||
 Junior middle school and below, n (%) | 2539 | 64.90% | 619 | 63.70% | 0.701 | 0.704 |  |
 High School or Technical School, n (%) | 1005 | 25.70% | 255 | 26.20% |  |  |  |
 College or University and above, n (%) | 366 | 9.40% | 98 | 10.10% |  |  |  |
Mother’s education level | |||||||
 Junior middle school and below, n (%) | 2865 | 73.30% | 691 | 71.10% | 1.89 | 0.389 |  |
 High School or Technical School, n (%) | 811 | 20.70% | 219 | 22.50% |  |  |  |
 College or University and above, n (%) | 234 | 6.00% | 62 | 6.40% |  |  |  |
 Right-handedness, n (%) | 3370 | 86.20% | 855 | 88.00% | 2.103 | 0.147 | 1.171 (0.946–1.450) |
 Physical disorder history, n (%) | 224 | 5.70% | 102 | 10.50% | 28.363 | 0.000*** | 1.929 (1.509–2.466) |
 Mental disorder history, n (%) | 27 | 0.70% | 11 | 1.10% | 1.962 | 0.161 | 1.646 (0.814–3.330) |
 Family history of mental disorder, n (%) | 77 | 2.00% | 17 | 1.70% | 0.2 | 0.655 | 0.886 (0.522–1.505) |
 Suicidal ideation, n (%) | 829 | 21.20% | 460 | 47.30% | 273.388 | 0.000*** | 3.339 (2.881–3.869) |
 Suicide plans, n (%) | 193 | 4.90% | 178 | 18.30% | 198.377 | 0.000*** | 4.318 (3.473–5.367) |
 Suicide attempts, n (%) | 380 | 9.70% | 302 | 31.10% | 295.294 | 0.000*** | 4.187 (3.525–4.974) |