Table 1.

Descriptive statistics for the total sample (n = 697).

	Mean ± SD/% (n)	Min-Max	Skewness	Kurtosis
Gender (male = 1)	51.5% (359)	1–2	0.06	−2.01
Education (primary school = 1)	35.6% (248)	1–5	0.64	0.73
Residence (urban = 1)	48.5% (338)	1–2	−0.06	−2.00
Age	14.25 ± 1.65	12–17	0.18	−1.12
BMI	19.61 ± 3.44	13.24–37.99	1.05	1.79
Sleeping hours	8.37 ± 1.04	5–12	0.23	0.59
Dietary knowledge
Choose fruits/vegetables	3.72 ± 0.83	1–5	−1.14	1.21
Eating sugar	2.15 ± 0.62	1–5	1.23	2.81
Eating a variety of food	3.73 ± 0.74	1–5	−1.38	2.15
Diet high in fat	2.11 ± 0.69	1–5	1.18	2.39
Diet of staple food	3.15 ± 0.96	1–5	−0.29	−0.95
Diet of animal products	2.64 ± 0.93	1–5	0.51	−0.82
Reducing fatty meat	3.69 ± 0.82	1–5	−1.26	1.33
Milk and dairy products	4.00 ± 0.54	1–5	−1.87	9.95
Beans and bean products	3.99 ± 0.53	1–5	−1.77	9.92
Preference for activities
Walking	2.54 ± 0.89	1–5	0.61	0.05
Sports	3.69 ± 1.07	1–5	−0.44	−0.78
Body building	2.86 ± 0.98	1–5	0.49	−0.40
Watching TV	4.05 ± 0.86	1–5	−0.87	0.82
Playing games	3.78 ± 1.09	1–5	−0.52	−0.79
Reading	3.52 ± 0.94	1–5	−0.27	−0.61
Life attitudes
Praise from parents	2.32 ± 0.77	1–4	0.35	−0.14
Being liked by friends	2.34 ± 0.85	1–4	1.68	10.47
Look fashionable	2.35 ± 0.82	1–4	1.13	6.47
Achieve high scores in school	2.34 ± 0.86	1–4	1.67	10.38

Notes: The amount of missing data varies across variables.