Table 4. Association of oral health-related quality of life with other dependent variables.
| Variables | Good OHRQoL, n (%) | Bad OHRQoL, n (%) | P value |
| Sex | |||
| Feminine | 260 (31.9) | 228 (28.0) | 0.0309* |
| Masculine | 149 (18.3) | 178 (21.8) | |
| Age range (years) | |||
| 11-13 | 255 (31.3) | 238 (29.2) | 0.2766 |
| 14-16 | 154 (18.9) | 168 (20.6) | |
| Skin color | |||
| White | 158 (19.6) | 175 (21.7) | 0.4064 |
| Brown | 199 (24.7) | 186 (21.7) | |
| Black | 52 (6.6) | 45 (5.7) | |
| Previous orthodontic treatment | |||
| Yes | 82 (10.1) | 108 (13.2) | 0.0270* |
| No | 327 (40.1) | 298 (36.6) | |
| Desire to correct teeth | |||
| Yes | 390 (47.8) | 355 (43.6) | <.0001* |
| No | 19 (2.3) | 51 (6.3) | |
| Dental Aesthetic Index (DAI) | |||
| ≤ 25 (no treatment necessary) | 246 (30.18) | 246 (30.18) | 0.9539 |
| >25 (treatment necessary) | 163 (20.0) | 161 (19.75) | |
| Victim of bullying | |||
| Yes | 246 (30.2) | 147 (18.0) | <.0001* |
| No | 163 (20.0) | 259 (31.8) | |
| Frequency of suffering bullying | |||
| One time | 73 (18.6) | 64 (16.3) | 0.0170* |
| Several times | 103 (26.2) | 58 (14.8) | |
| Almost everyday | 42 (10.7) | 15 (3.8) | |
| Several times a day | 28 (7.1) | 10 (2.5) | |
| Consequences of bullying | |||
| No consequences | 110 (28.0) | 104 (26.5) | <.0001* |
| Some bad consequences | 106 (27.0) | 34 (8.6) | |
| Terrible consequences | 18 (4.6) | 4 (1.0) | |
| Had to change school | 12 (3.0) | 5 (1.3) | |
| Type of bullying suffered | |||
| Emotional | 17 (4.4) | 19 (4.9) | 0.1289 |
| Verbal | 110 (28.0) | 73 (18.5) | |
| Physical | 33 (8.4) | 22 (5.6) | |
| Racist | 35 (9.0) | 13 (3.3) | |
| Sexual | 7 (2.0) | 4 (1.0) | |
| More than one response | 43 (10.6) | 15 (3.9) | |
| No response | 1 (0.2) | 1 (0.2) | |
| Victim was already antagonist of bullying | |||
| Yes | 75 (19.1) | 52 (13.2) | 0.3162 |
| No | 171 (43.5) | 95 (24.2) | |
*statistically significant.