Table 3 Distribution of demographic variables by latent class
|  | Class 1 (n = 22,417) | Class 2 (n = 2994) | Class 3 (n = 155) |
|---|---|---|---|
Gender | |||
 Male | 9713 (43.3) | 1924 (64.3) | 139 (89.7) |
 Female | 12,704 (56.7) | 1070 (35.7) | 16 (10.3) |
Age (years) | |||
 12 | 2484 (11.1) | 136 (4.5) | 4 (2.6) |
 13 | 9341 (41.7) | 695 (23.2) | 30 (19.4) |
 14 | 3470 (15.5) | 573 (19.1) | 25 (16.1) |
 15 | 7122 (31.8) | 1590 (53.1) | 96 (61.9) |
Religion | |||
 Buddhist | 20,644 (92.1) | 2849 (95.2) | 125 (80.6) |
 Muslim/Christian | 1773 (7.9) | 145 (4.8) | 30 (19.4) |
High school grade | |||
 Grade 1 | 12,930 (56.8) | 787 (29.8) | 37 (24.5) |
 Grade 3 | 9844 (43.2) | 1854 (70.2) | 114 (75.5) |
GPA | |||
 0–2.0 | 1892 (8.4) | 570 (19) | 56 (36.1) |
 2.1–3.0 | 11,323 (50.5) | 1700 (56.8) | 70 (45.2) |
 3.1–4.0 | 9202 (41.0) | 724 (24.2) | 29 (18.7) |
Living status | |||
 Alone or with friends/relatives | 4260 (19) | 634 (21.2) | 33 (21.3) |
 With parents | 18,157 (81) | 2360 (78.8) | 122 (78.7) |
School type | |||
 Public | 15,423 (68.8) | 1902 (63.5) | 99 (63.9) |
 Private | 6994 (31.2) | 1092 (36.5) | 56 (36.1) |
Disdain from friends if use drugs | |||
 Low level | 11,109 (49.6) | 2234 (74.6) | 138 (89.0) |
 High level | 11,308 (50.4) | 760 (25.4) | 17 (11.0) |
Perceived roughnessa of school | |||
 Low level | 15,729 (70.2) | 1910 (63.8) | 80 (51.6) |
 High level | 6688 (29.8) | 1084 (36.2) | 75 (48.4) |
Alcohol use problem of family members | |||
 No | 14,991 (66.9) | 1662 (55.5) | 102 (65.8) |
 Yes | 7426 (33.1) | 1332 (44.5) | 53 (34.2) |
Tobacco use problem of family members | |||
 No | 16,607 (74.1) | 1938 (64.7) | 98 (63.2) |
 Yes | 5810 (25.9) | 1056 (35.3) | 57 (36.8) |
Drug use problem of family members | |||
 No | 22,095 (98.6) | 2853 (95.3) | 129 (83.2) |
 Yes | 322 (1.4) | 141 (4.7) | 26 (16.8) |
Alcohol use problem of peers | |||
 No | 15,354 (68.5) | 1199 (40.0) | 47 (30.3) |
 Yes | 7063 (31.5) | 1795 (60.0) | 108 (69.7) |
Tobacco use problem of peers | |||
 No | 9324 (41.6) | 469 (15.7) | 14 (9) |
 Yes | 13,093 (58.4) | 2525 (84.3) | 141 (91) |
Drug use problem of peers | |||
 No | 16,638 (74.2) | 1546 (51.6) | 39 (25.2) |
 Yes | 5779 (25.8) | 1448 (48.4) | 116 (74.8) |