Er,Cr:YSGG 2780 nm Laser Treatment of Lip Melanin Hyperpigmentation

Table 3

Correlation between different outcomes evaluated during Er,Cr : YSGG laser thearpy.

			Satisfaction	Adverse effects	Wound healing	Pain score using VAS index	Relapse after 18 months
Spearman’s rho correlation	Color improvement	Correlation coefficient	0.790	−0.026	0.326	0.704	−0.908
		Sig.	0.001	0.408	0.001	0.001	0.001
	Satisfaction	Correlation coefficient		−0.106	0.420	0.650	−0.739
		Sig.		0.168	0.001	0.001	0.001
	Adverse effects	Correlation coefficient	−0.106		−0.367	−0.046	−0.053
		Sig.	0.168		0.001	0.338	0.313
	Wound healing	Correlation coefficient	0.420	−0.367		−0.254	−0.270
		Sig.	0.001	0.001		0.010	0.006
	Pain score using VAS index	Correlation coefficient	0.650	−0.046	−0.254		−0.646
		Sig.	0.001	0.338	0.010		0.001