Table 4. Prevalence of daily use of dental floss and the association with socio-demographic variables .
| Daily dental floss | Yes | No | |||
| N | % | N | % | P | |
| Parents´ educational level | |||||
| ≥4 grade | 7 | 36.8 | 12 | 63.2 | 0.532 |
| 5-12 grade | 87 | 36.6 | 151 | 63.4 | |
| >12 grade | 27 | 40.9 | 39 | 59.1 | |
| Father´s job situation | |||||
| Employed | 122 | 38.7 | 193 | 61.3 | 0.211 |
| Unemployed | 13 | 31.7 | 28 | 68.3 | |
| Gender | |||||
| Male | 50 | 29.6 | 119 | 70.4 | <0.001 |
| Female | 127 | 46.0 | 149 | 54.0 | |
| Age | |||||
| ≤ 15 years | 75 | 32.9 | 153 | 67.1 | 0.001 |
| > 15 years | 87 | 45.8 | 103 | 54.2 | |
| Residence area | |||||
| Rural | 84 | 36.7 | 45 | 63.3 | 0.192 |
| Urban | 57 | 41.9 | 79 | 58.1 | |
| Crowding index | |||||
| ≤1 | 137 | 39.1 | 213 | 60.9 | 0.664 |
| >1 | 8 | 40.0 | 12 | 60.0 | |