Table 3 Comparison of weighted prevalence of overweight and obesity between different groups
Characteristics | Overweight/obesity | Overweight | Obesity | ||||||
|---|---|---|---|---|---|---|---|---|---|
Prevalence (%)a | x2b | P value | Prevalence (%)a | x2b | P value | Prevalence (%)a | x2b | P value | |
Sex | Â | 189.6 | <.0001 | Â | 104.3 | <.0001 | Â | 41.1 | <.0001 |
 Boys | 14.7 (13.7–15.7) |  |  | 10.4 (9.7–11.1) |  |  | 4.3 (3.8–4.9) |  |  |
 Girls | 7.7 (7.1–8.3) |  |  | 5.3 (4.6–5.9) |  |  | 2.4 (2.1–2.8) |  |  |
Area | Â | 11.0 | 0.0009 | Â | 25.6 | <.0001 | Â | 0.0001 | 0.99 |
 Urban | 12.7 (11.6–13.9) |  |  | 9.3 (8.5–10.1) |  |  | 3.4 (2.7–4.1) |  |  |
 Rural | 10.5 (9.7–11.3) |  |  | 7.1 (6.6–7.6) |  |  | 3.4 (2.9–3.9) |  |  |
Types of school | Â | 3.2 | 0.2 | Â | 3.2 | 0.2 | Â | 25.2 | <.0001 |
 Middle school | 11.4 (10.5–12.3) |  |  | 7.4 (6.8–8.0) |  |  | 4.1 (3.5–4.7) |  |  |
 Academic high school | 10.4 (9.2–11.5) |  |  | 8.2 (7.3–9.1) |  |  | 2.2 (1.7–2.6) |  |  |
 Vocational high school | 12.0 (10.4–13.5) |  |  | 8.3 (7.2–9.5) |  |  | 3.6 (2.9–4.3) |  |  |