Table 3.

Results of multifactorial logistical regression model

Variables	OR	95% CI		P
BMI
Normal	1
Moderate malnutrition	1.19	1.17	1.22	< 0.001
Mild malnutrition	1.17	1.15	1.19	< 0.001
Overweight	0.74	0.73	0.75	< 0.001
Obese	0.64	0.63	0.65	< 0.001
District
Futian	1
Baoan	2.00	1.97	2.04	0.888
Dapeng	3.23	3.10	3.36	< 0.001
Guangming	1.42	1.39	1.45	< 0.001
Longgang	1.81	1.78	1.83	< 0.001
Longhua	3.44	3.38	3.51	< 0.001
Luohu	2.53	2.48	2.50	< 0.001
Nanshan	1.68	1.65	1.71	< 0.001
Pingshan	1.12	1.10	1.16	< 0.001
Yantian	3.80	3.69	3.93	< 0.001
Sex
Girl	1
Boy	0.90	0.89	0.91	< 0.001
Age
6–8	1
9–11	0.62	0.61	0.62	< 0.001
12–14	0.23	0.22	0.23	< 0.001
15–17	0.21	0.21	0.22	< 0.001
≥ 18	0.26	0.25	0.28	< 0.001
Type of school
Public	1
Private	1.23	1.22	1.24	< 0.001