|  | Most important groups of close friends | |||||||
---|---|---|---|---|---|---|---|---|---|
Independent variables | School | Family | Hobbies and others ** | Church | Â | Total n (%) | *p-value | Degrees of freedom | |
n (%) | n (%) | n (%) | n (%) | Â | Â | Â | Â | ||
Binge drinking | Never | 98 (24.7) | 92 (23.2) | 64 (16.2) | 142 (35.9) | 396 (100) | Â | Â | Â |
 | Less than monthly to monthly | 74 (42.0) | 42 (23.9) | 26 (14.8) | 34 (19.3) | 176 (100) | 28.978 | 0.000 | 6 |
 | Weekly to daily | 29 (42.6) | 15 (22.1) | 11 (16.2) | 13 (19.1) | 68 (100) |  |  |  |
 | Total | 201 (31.4) | 149 (23.3) | 101 (15.8) | 189 (29.5) | 640 (100) |  |  |  |
Age | 15 to 16 years old | 109 (27.6) | 104 (26.3) | 63 (15.9) | 119 (30.1) | 395 (100) | Â | 0.065 | 6 |
 | 17 years old | 64 (38.3) | 34 (20.4) | 22 (13.2) | 47 (28.1) | 167 (100) | 11.873 |  |  |
 | 18 to 19 years old | 28 (35.9) | 11 (14.1) | 16 (20.5) | 23 (29.5) | 78 (100) |  |  |  |
 | Total | 201 (31.4) | 149 (23.3) | 101 (15.8) | 189 (29.5) | 640 (100) |  |  |  |
Gender | Male | 71 (31.8) | 46 (20.6) | 48 (21.5) | 58 (26.0) | 223 (100) | 9.647 | 0.022 | 3 |
 | Female | 130 (31.2) | 103 (24.7) | 53 (12.7) | 131 (31.4) | 417 (100) |  |  |  |
 | Total | 201 (31.4) | 149 (23.3) | 101 (15.8) | 189 (29.5) | 640 (100) |  |  |  |
Type of School | Public | 153 (31.2) | 84 (17.1) | 79 (16.1) | 175 (35.6) | 491 (100) | 61.354 | 0.000 | 3 |
 | Private | 48 (32.2) | 65 (43.6) | 22 (14.8) | 14 (9.4) | 149 (100) |  |  |  |
 | Total | 201 (31.4) | 149 (23.3) | 101 (15.8) | 189 (29.5) | 640 (100) |  |  |  |
Motherâs educational background | O to 7 years of study | 64 (31.4) | 24 (11.8) | 28 (13.7) | 88 (43.1) | 204 (100) | 40.156 | 0.000 | 3 |
 | 8 or more years of study | 106 (31.7) | 106 (31.7) | 49 (14.7) | 73 (21.9) | 334 (100) |  |  |  |
 | Total | 170 (31.6) | 130 (24.2) | 77 (14.3) | 161 (29.9) | 538 (100) |  |  |  |
 | O to 7 years of study | 66 (29.9) | 35 (15.8) | 31 (14.0) | 89 (40.3) | 221 (100) | 36.996 | 0.000 | 3 |
Fatherâs educational background | 8 or more years of study | 96 (35.2) | 90 (33.0) | 38 (13.9) | 49 (17.9) | 273 (100) | Â | Â | Â |
 | Total | 162 (32.8) | 125 (25.3) | 69 (14.0) | 138 (27.9) | 494 (100) |  |  |  |
 | High vulnerability (class I and II) | 90 (29.3) | 38 (12.4) | 57 (18.6) | 122 (39.7) | 307 (100) | 54.672 | 0.000 | 3 |
SVI | Low vulnerability (class III, IV and V) | 111 (33.3) | 111 (33.3) | 44 (13.2) | 67 (20.1) | 333 (100) | Â | Â | Â |
 | Total | 201 (31.4) | 149 (23.3) | 101 (15.8) | 189 (29.5) | 640 (100) |  |  |  |