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Table 4 Results of Spearman Correlation tests for relationship between OHIP domains and age, gender, educational level, family income, smoking / shesha, frequency of brushing, noticing teeth color changes, noticing teeth movement after braces and noticing teeth color changes because of braces. Only statistically significant correlation coefficient (r) and p-values (p < 0.05) are shown

From: Impact of fashion braces on oral health related quality of life: a web-based cross-sectional study

   Functional limitation Physical pain Psychological discomfort Physical disability Psychological disability Social disability Handicap Total OHIP
Age R   −0.08       
P value   0.01       
Educational level R −0.08        
P-value 0.01        
Family income R   −0.07   −0.10 −0.08 − 0.06 − 0.10 −0.09
P-value   0.01   0.001 0.01 0.05 0.001 0.002
Smoking / shesha R         
P-value         
Frequency of brushing R 0.09 0.07       
P-value 0.002 0.03       
Noticing teeth color changes R −0.12 −0.13 −0.10 −0.11 −0.15 −0.14 −0.11 −0.19
P-value 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001
Noticing teeth color changes because of braces R    0.17      
P-value    0.02