Prevalence of regular smoking* according to school context, household context and family rapport among school adolescents in 26 Brazilian state capitals and the Federal District
| Prevalence % (95% CI) | p Value | |
| School context | ||
| Administrative domain | ||
| Public | 6.6 (6.1 to 71) | 0.001 |
| Private | 5.3 (4.6 to 6.1) | |
| Perception of access to cigarette purchase inside the school | ||
| No | 7.1 (6.5 to 7.7) | <0.001 |
| Yes | 14.9 (13.5 to 16.4) | |
| Not aware | 3.7 (3.3 to 4.1) | |
| Skipped classes without parental permission in the past 30 days | ||
| Never | 4.3 (3.9 to 4.6) | <0.001 |
| 1 or 2 days | 11.7 (10.4 to 13.3) | |
| 3 or more days | 23.8 (21.1 to 26.6) | |
| Report bullying | ||
| Never | 6.1 (5.6 to 6.7) | 0.962 |
| Rarely/sometimes | 6.2 (5.5 to 6.9) | |
| Most of the time/always | 6.2 (4.3 to 8.9) | |
| Household context | ||
| Family composition | ||
| Lives with father and mother | 4.8 (4.4 to 5.3) | <0.001 |
| Lives with mother | 8.0 (7.2 to 9.0) | |
| Lives with father | 9.2 (7.4 to 11.3) | |
| Doesn't live with father or mother | 9.6 (8.0 to 11.5) | |
| Parents or responsible adults smoke | ||
| None of them smoke | 4.8 (4.4 to 5.2) | <0.001 |
| One of them smokes | 11.3 (9.5 to 13.3) | |
| Both smoke | 8.9 (7.9 to 10.1) | |
| Other people smoked at home in the past 7 days | ||
| None | 4.5 (4.1 to 5.0) | <0.001 |
| 1–2 days | 7.7 (6.3 to 9.2) | |
| 3–6 days | 9.3 (7.6 to 11.2) | |
| Every day | 10.8 (9.5 to 12.2) | |
| Family rapport | ||
| Meals with mother or responsible adult | ||
| Every day | 5.2 (4.7 to 5.7) | <0.001 |
| At least on 1 day | 6.1 (5.4 to 6.9) | |
| Rarely | 7.5 (6.4 to 8.7) | |
| Never | 10.9 (9.5 to 12.4) | |
| Parents knew what child was doing in the past 30 days | ||
| Always/most of the time | 4.2 (3.7 to 4.7) | <0.001 |
| Sometimes/rarely/never | 8.8 (8.2 to 9.5) | |
| Perception of the parents' reaction if they smoked cigarettes | ||
| Would care a lot | 5.2 (4.8 to 5.6) | <0.001 |
| Would care little | 25.7 (22.1 to 29.6) | |
| Would not care | 29.4 (23.8 to 35.7) | |
| Don't know | 9.9 (8.0 to 11.4) | |
Source: National Adolescent School-based Health Survey (PeNSE, 2009).
↵* Report of having smoked cigarettes at least once in the past 30 days preceding the questionnaire.