Clinical validity of the Serbian version of the Orthognathic Quality of Life Questionnaire (OQLQ)_
| Subscales of OQLQ | Peer Assessment Rating (PAR) pre-treatment score | |
|---|---|---|
| Correlation coefficient | P | |
| Social aspects of deformity | 0.274 | 0.005 |
| Facial aesthetics | 0.275 | 0.004 |
| Oral function | 0.276 | 0.004 |
| Awareness of facial deformity | 0.259 | 0.007 |
Descriptive statistics of the Serbian version of the Orthognathic Quality of Life Questionnaire (OQLQ) at baseline and after 6 weeks_
| Subscale/item | Test values | Retest values | ||
|---|---|---|---|---|
| Mean ±SD | Range | Mean ±SD | Range | |
| Subscales of OQLQ | 6.7±7.7 | 0-30 | 6.6±7.7 | 0-29 |
| Social aspects of deformity | 6.8±5.3 | 0-19 | 6.4±5.5 | 0-20 |
| Facial aesthetics | 5.0±4.3 | 0-17 | 5.2±4.8 | 0-16 |
| Oral function | 5.9±4.6 | 0-16 | 5.7±4.9 | 0-16 |
| Awareness of facial deformity | ||||
Internal consistency analysis of the Serbian version of the Orthognathic Quality of Life Questionnaire (OQLQ)_
| Subscale/item | Item-total correlation | Alpha coefficient for each component | Intra-class correlation coefficient |
|---|---|---|---|
| Social aspects of deformity | |||
| 15. Cover mouth when meeting people | 0.78 | ||
| 16. Worry about meeting people | 0.68 | ||
| 17. Worry people will make hurtful comments | 0.77 | ||
| 18. Lack confidence socially | 0.74 | 0.91 | 0.91 (p=0.001) |
| 19. Do not like smiling | 0.66 | ||
| 20. Get depressed about appearance | 0.73 | ||
| 21. Sometimes think people are staring | 0.60 | ||
| 22. Comments about appearance upset me | 0.70 | ||
| Facial aesthetics | |||
| 1. Self-conscious about appearance of my teeth | 0.42 | ||
| 7. Don’t like seeing side view of face (profile) | 0.67 | ||
| 10. Dislike having photograph taken | 0.59 | 0.85 | 0.90 (p=0.001) |
| 11. Dislike being seen on video | 0.72 | ||
| 14. Self-conscious about appearance | 0.60 | ||
| Oral function | |||
| 2. Problems biting | 0.52 | ||
| 3. Problems chewing | 0.71 | ||
| 4. Avoid eating some foods | 0.53 | 0.75 | 0.88 (p=0.001) |
| 5. Don’t like eating in public | 0.30 | ||
| 6. Pains in face/jaw | 0.55 | ||
| Awareness of facial deformity | |||
| 8. Spend time studying face | 0.67 | ||
| 9. Spend time studying teeth | 0.69 | 0.85 | 0.89(p=0.001) |
| 12. Stare at people’s teeth | 0.73 | ||
| 13. Stare at people’s faces | 0.65 |
Exploratory factor analysis of the Serbian version of the Orthognathic Quality of Life Questionnaire (OQLQ)_
| Original OQLQ items | Factor 1 | Factor 2 | Factor 3 | Factor 4 |
|---|---|---|---|---|
| Social aspects of deformity | Facial aesthetics | Oral function | Awareness of facial deformity | |
| Social aspects of deformity | ||||
| 15. Cover mouth when meeting people | .856 | .165 | .056 | .162 |
| 16. Worry about meeting people | .821 | .162 | -.092 | .142 |
| 17. Worry people will make hurtful comments | .802 | .117 | .279 | .052 |
| 18. Lack confidence socially | .729 | .163 | .295 | .136 |
| 19. Do not like smiling | .618 | .408 | .199 | .011 |
| 20. Get depressed about appearance | .665 | .252 | .300 | .191 |
| 21. Sometimes think people are staring | .560 | .075 | .520 | .058 |
| 22. Comments about appearance upset me | .624 | .298 | .288 | .147 |
| Facial aesthetics | ||||
| 1. Self-conscious about appearance of my teeth | .511 | .263 | .323 | .065 |
| 7. Don’t like seeing side view of face (profile) | .157 | .790 | .275 | .117 |
| 10. Dislike having photograph taken | .183 | .644 | .203 | .013 |
| 10. Dislike having photograph taken | .206 | .804 | .166 | .052 |
| 14. Self-conscious about appearance | .338 | .495 | .437 | .307 |
| Oral function | ||||
| 2. Problems biting | .034 | .008 | .596 | .550 |
| 3. Problems chewing | .115 | .033 | .433 | .358 |
| 4. Avoid eating some foods | .145 | .047 | .056 | .784 |
| 5. Don’t like eating in public | .277 | .325 | .628 | .347 |
| 6. Pains in face/jaw | .154 | .332 | .075 | .625 |
| Awareness of facial deformity | ||||
| 8. Spend time studying face | .347 | .197 | .421 | .494 |
| 9. Spend time studying teeth | .394 | .155 | .487 | .429 |
| 12. Stare at people’s teeth | .390 | .271 | .204 | .625 |
| 13. Stare at people’s faces | .212 | .305 | .147 | .713 |