Table 5: Characteristics of Subjects in the E-Group and the C-Group

E-group C-group P-value
Total 1102 1101
Female (%) 166 (15.1) 148 (13.4) 0.300a
Mean age (SD) 41.1 (9.6) 41.4 (9.7) 0.447b
TMD (%) 177 (16.1) 185 (16.8) 0.646a

a chi-square test
b t-test