Table 4.
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 |
Highest factor loadings for each factor are in the bold script; factor loadings corresponding to the factors in the original version are marked with a grey background; factor loadings with a black background indicate highest loadings on other factors than the original ones.