As with any such correlation, one has to entertain the notion that said correlation might be spurious or indirectly related before assuming a strong causal link. Here it is for example known already ...

G2-PASE approximates PASI using routinely captured PGA and BSA, aiming to replace impractical PASI scoring in real-world clinical settings without sacrificing measurement fidelity. Strong performance ...

Correlation coefficients are indicators of the strength of the linear relationship between two different variables, x and y. A linear correlation coefficient that is greater than zero indicates a ...