Age | Pack-years† | Log CdU (μg/l) | Log CdU (μg/g creatinine) | Log CrU (μg/l) | Log RBPU (μg/l) | Log RBPU (μg/g creatinine) | Log β2-mU (μg/l) | Log β2-mU (μg/l)>20 | |
Age | – | ||||||||
Pack-years† | 0.10* | ||||||||
Log CdU, μg/l | 0.39*** | 0.15*** | |||||||
Log CdU, μg/g creatinine | 0.52*** | 0.18*** | 0.88*** | ||||||
Log CrU, μg/l | −0.26*** | 0.06 | 0.25*** | −0.24*** | |||||
Log RBPU, μg/l | 0.01 | 0.18*** | 0.37*** | 0.07 | 0.60*** | ||||
Log RBPU, μg/g creatinine | 0.24*** | 0.22*** | 0.23*** | 0.30*** | −0.14*** | 0.71*** | |||
Log β2-mU, μg/l | 0.02 | 0.15** | 0.10* | 0.07 | 0.05 | 0.36*** | 0.42*** | ||
Log β2-mU, μg/g creatinine | 0.14** | 0.16*** | −0.03 | 0.18*** | −0.45*** | 0.01 | 0.43*** | 0.87*** | |
Log β2-mU>20 μg/l | 0.03 | 0.18*** | 0.28*** | 0.15** | 0.28*** | 0.59*** | 0.51*** | – | |
Log β2-mU>20 μg/g creatinine | 0.21*** | 0.19*** | 0.10* | 0.30*** | −0.42*** | 0.11* | 0.55*** | – | 0.76*** |
r Values are Pearson's correlation coefficients.
*p<0.05; **p<0.01; ***p<0.001.
↵† Indicates Spearman's rank correlation coefficients with number of pack-years.
β2-mU, concentration of β2-microglobulin in urine; CdU, concentration of cadmium in urine; CrU, concentration of creatinine in urine; RBPU, concentration of retinol-binding protein in urine.