Table 1 Summary of baseline characteristics of children with ADHD in Shanghai during COVID-19 control measures (N = 1102).
From: Longitudinal patterns of attention-deficit/hyperactivity disorder children in Shanghai, China
Variable | Category | Count | Proportion (%) |
|---|---|---|---|
Age | 6–10 years | 769 | 69.8 |
10–16 years | 213 | 19.3 | |
4–6 years | 117 | 10.6 | |
Gender | Male | 915 | 83.0 |
Female | 187 | 17.0 | |
Gestational Age (weeks) | 37–42 weeks | 1020 | 92.6 |
< 37 weeks | 64 | 5.8 | |
≥ 42 weeks | 18 | 1.6 | |
Birth Weight (grams) | 2500–4000 g | 882 | 80.0 |
≥ 4000 g | 150 | 13.6 | |
< 2500 g | 70 | 6.4 | |
Maternal Age at Birth | < 30 years | 769 | 69.8 |
30–35 years | 266 | 24.1 | |
≥ 35 years | 67 | 6.1 | |
ADHD Subtype | mixed | 545 | 49.5 |
attention deficit | 486 | 44.1 | |
hyperactive-impulsive | 71 | 6.4 | |
Wechsler intelligence | 90–110 | 530 | 48.1 |
70–90 | 356 | 32.3 | |
≥ 110 | 179 | 16.2 | |
< 70 | 36 | 3.3 | |
Income level | 0–5000 | 135 | 12.3 |
5000–10,000 | 431 | 39.1 | |
10,000–30,000 | 430 | 39.0 | |
> 30,000 | 106 | 9.6 |
