Table 3.

Comparison of overall Child-OIDP scores between face-to-face interview and self-administered questionnaire groups

Proxy measures	rho	p value
FACE-TO-FACE INTERVIEW GROUP (n = 72)
Self-rated oral health status (poor/.../good)	-0.04	0.747
Self-perceived need for braces (a little/.../a lot)	0.26	0.027
Happiness with dental appearance (unhappy/.../happy)	-0.28	0.015
Frequency of thinking about dental appearance (not often/.../a lot)	0.37	0.001
SELF-ADMINISTERED QUESTIONNAIRE GROUP (n = 72)
Self-rated oral health status (poor/.../good)	-0.11	0.346
Self-perceived need for braces (a little/.../a lot)	0.12	0.325
Happiness with dental appearance (unhappy/.../happy)	-0.24	0.039
Frequency of thinking about dental appearance (not often/.../a lot)	0.13	0.297
COMPARISON OF CORRELATIONS BETWEEN GROUPS
Self-rated oral health status (poor/.../good)	---	0.662
Self-perceived need for braces (a little/.../a lot)	---	0.394
Happiness with dental appearance (unhappy/.../happy)	---	0.787
Frequency of thinking about dental appearance (not often/.../a lot)	---	0.118

Spearman's rho correlation coefficient was used

(*) Fisher's Z-transformation was used