Table 2.

Overview of correlation coefficients of parameter and location

Parameter	Location				Mean
	Lower eyelid		Cheek
	Right	Left	Right	Left
R0	–0.032	–0.077	0.000	–0.107	–0.053
R1	0.144	–0.008	0.341a)	0.247a)	0.090
R2	–0.551b)	–0.521b)	–0.419b)	–0.444b)	–0.472b)
R3	–0.017	–0.091	0.029	–0.117	–0.048
R4	0.206a)	0.171	0.400b)	0.249a)	0.252b)
R5	–0.255	–0.087	–0.289	–0.104	–0.121b)
R6	–0.123	0.059	0.014	0.118	0.012
R7	–0.318b)	–0.548b)	–0.605b)	–0.636b)	–0.523b)
R8	–0.076	-–0.110	–0.088	–0.173	–0.109a)
R9	0.066	–0.143	0.223a)	–0.103	0.003

Pearson correlation coefficient of the parameter with age of the patients. R2 and R7 are highly correlated with aging of the skin.

^a)p<0.05;

^b)p<0.01.