Table 1 Demographic characteristics of participants.

		Mean ± SD	Range	Frequency(%)
Sex	Male			10(45.5%)
	Female			12(54.5%)
Age		11.8±0.3	11.3-12.2
Height(cm)		153.4±7.4	139-167
Weight (kg)		46.2±11.2	30-73
BMI		19.5±4.1	13.4-31.6
Economic Level	High			5(22.7%)
	Middle			14(63.6%)
	Low			2(9.1%)