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Table 1 Trend lines for the dependencies of skin roughness parameters on the age difference (x = BA – CA) for male and female participants

From: Difference between the biologic and chronologic age as an individualized indicator for the skin care intensity selection: skin topography and immune system state studies, parameter correlations with age difference

 SaSmaxSzSpSvSda
Femaley = 48.80e–0.83x, R2 = 0.209y = 565.2e–0.62x, R2 = 0.160y = 725.9e–0.83x, R2 = 0.384y = 237.5e–0.29x, R2 = 0.060y = 282.3e–0.57x, R2 = 0.209y = 0.181e–0.43x, R2 = 0.377
Maley = 74.69e–0.99x, R2 = 0.555y = 74.69e–0.99x, R2 = 0.555y = 494.6e–0.60x, R2 = 0.134y = 321.4e–0.45x, R2 = 0.314y = 371.4e–0.76x, R2 = 0.388y = 0.255e–0.42x, R2 = 0.395