TABLE 3.

Comparison ^* between the Caucasian photo‐numeric scale and the Korean photo‐numeric scales for assessing photo‐ageing.

		Comparison
Measurement		Caucasian photo‐ageing scale and Korean photo‐numeric scale for the wrinkling constituent of photo‐ageing	Caucasian photo‐ageing scale and Korean photo‐numeric scale for the dyspigmentation constituent of photo‐ageing
Mean Spearman's Rank Correlation (ρ)	Value	0.62 ± 0.06	0.32 ± 0.02
	p‐Value	1.31×10−84	1.41×10−23
Mean Cohen's Kappa (κ)	Value	0.38 ± 0.05	0.11 ± 0.03
	p‐Value	8.87×10−53	1.37×10−5
Mean area under curve (AUC) of the Receiver Operator Characteristic (ROC) curve	When the Caucasian photo‐numeric scale is the gold standard	0.76 ± 0.05	0.60 ± 0.02
	When the Korean photo‐numeric scale is the gold standard	0.84 ± 0.03	0.64 ± 0.02
Mean Coefficient of determination (R 2) for the equation for the goodness of fit		0.9386	0.7888
Equation for the goodness of fit		Korean scale = 0.9788 × Caucasian scale ‐ 0.0018	Korean scale = 0.5296 × Caucasian scale + 0.0064

^*Means are calculated from three assessors.