x

y = plasma TGF-β1

Correlation coefficient

Age

y = −0.162x + 17.4

r = 0.197

Height

y = 0.658x − 92.5

r = 0.411

Weight

y = −0.374x + 28.4

r = 0.291

BMI

y = −0.982x + 30.6

r = 0.395