Table 1.

Demographic data of respondents who are students of SDN Keputih 245, SMPN 19, and SMAN 11 Surabaya, Indonesia.

Data	SDN Keputih 245	SMPN 19 Surabaya	SMAN 11 Surabaya
	(elementary school)	(junior high school)	(senior high school)
Gender, n (%)
Male	34(48)	16(27)	20(31)
Female	37(52)	44(73)	44(69)
Age (in years)
11-13	70(99)	25(42)	0 (0)
14-16	1(1)	35(58)	55(86)
17-19	0 (0)	0 (0)	9(14)
Domicile, n (%)
Surabaya	71(100)	60(100)	62(97)
Sidoarjo	0 (0)	0 (0)	2(3)
Parents occupation, n (%)
Civil Servant	4(6)	8(13)	12(19)
Private Sector Worker	20(28)	51(85)	52(81)
Laborer	9(13)	0 (0)	0 (0)
Entrepreneur	25(35)	0 (0)	0 (0)
Others	13(18)	1(2)	0 (0)