General characteristics of the participants
| Variables | n (%) | Variables | n (%) |
|---|---|---|---|
| Gender | Family type | ||
| Male | 196 (50.1) | Nuclear family | 173 (44.2) |
| Female | 195 (49.9) | Extended family | 90 (23.0) |
| Other family types | 128 (32.8) | ||
| Age | Sex partner smokes | ||
| Middle adolescence | 183 (46.8) | Yes | 36 (19.8) |
| Late adolescence | 208 (53.2) | No | 146 (80.2) |
| Academic year | Sex partner drinks | ||
| First | 235 (60.1) | Yes | 68 (37.4) |
| Second | 61 (15.6) | No | 114 (62.6) |
| Third | 95 (24.3) | ||
| Academic major | Ever used alcohol last year before sex | ||
| Arts cluster | 86 (22.0) | Yes | 89 (48.9) |
| Science cluster | 185 (47.3) | No | 93 (51.1) |
| Commercial cluster | 120 (30.7) | ||
| Income (baht) | Ever used a drug last year before sex | ||
| Low | 74 (18.9) | Yes | 18 (09.9) |
| Middle | 199 (50.9) | No | 164 (90.1) |
| High | 118 (30.2) | ||
| Residence | Cont* used at last sex | ||
| Subdistrict administrative organization area | 162 (41.4) | Yes | 138 (75.8) |
| Subdistrict municipality area | 113 (28.9) | No | 44 (24.2) |
| Municipality area | 116 (29.7) | ||
| Sc** with parents | Cont* option at last sex | ||
| Never | 195 (49.9) | Condom | 116 (84.1) |
| Rarely | 130 (33.2) | Rhythm method/calendar | 08 (05.8) |
| Regularly | 66 (16.9) | Emergency pills | 14 (10.1) |
| Sexually active | 182 (46.5) | Last sexual partner | |
| Cont* used at first sex | Boy/girlfriend | 151 (83.0) | |
| Yes | 135 (74.6) | Friend/casual | 24 (13.2) |
| No | 47 (25.4) | Male/female sex worker | 7 (03.8) |
| Variables | Variables | ||
|---|---|---|---|
| Male | 196 (50.1) | Nuclear family | 173 (44.2) |
| Female | 195 (49.9) | Extended family | 90 (23.0) |
| Other family types | 128 (32.8) | ||
| Middle adolescence | 183 (46.8) | 36 (19.8) | |
| Late adolescence | 208 (53.2) | 146 (80.2) | |
| First | 235 (60.1) | Yes | 68 (37.4) |
| Second | 61 (15.6) | No | 114 (62.6) |
| Third | 95 (24.3) | ||
| Arts cluster | 86 (22.0) | Yes | 89 (48.9) |
| Science cluster | 185 (47.3) | No | 93 (51.1) |
| Commercial cluster | 120 (30.7) | ||
| Low | 74 (18.9) | Yes | 18 (09.9) |
| Middle | 199 (50.9) | No | 164 (90.1) |
| High | 118 (30.2) | ||
| Subdistrict administrative organization area | 162 (41.4) | Yes | 138 (75.8) |
| Subdistrict municipality area | 113 (28.9) | No | 44 (24.2) |
| Municipality area | 116 (29.7) | ||
| Never | 195 (49.9) | Condom | 116 (84.1) |
| Rarely | 130 (33.2) | Rhythm method/calendar | 08 (05.8) |
| Regularly | 66 (16.9) | Emergency pills | 14 (10.1) |
| Sexually active | 182 (46.5) | ||
| Boy/girlfriend | 151 (83.0) | ||
| Yes | 135 (74.6) | Friend/casual | 24 (13.2) |
| No | 47 (25.4) | Male/female sex worker | 7 (03.8) |
Note(s): *contraceptive, **sexuality communication
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