Evaluating the effectiveness of clear aligner therapy in leveling the curve of spee: a comparative study of extraction vs. non-extraction patients

Table 2 Correlation test (Pearson and Eta) between pre-treatment CoS and potential variables

Variable	r/η	P value
Age	0.012	0.893^a
Initial crowding	-0.028	0.758^a
Overbite	0.510	< 0.001^a*
Overjet	0.524	< 0.001^a*
Gender	0.040	0.664^b
Angle classification	0.255	0.020^b*
Sagittal skeletal classification	0.205	0.082^b
Vertical skeletal pattern	0.095	0.599^b

^aPearson correlation coefficient, ^bEta correlation coefficient, *Statistically significant at p < 0.05

ISSN: 1472-6831