Table 1.
Baseline characteristics.
Table 2.
Reference ranges for serum erythropoietin (IU/L) levels per age group for subjects in the reference sample.
Table 3.
Multivariate linear regression for erythropoietin.
Fig 1.
Relation between hemoglobin and erythropoietin in subjects with a normal or impaired renal function.
Relation between hemoglobin and erythropoietin in men and women separated for normal (continuous line) and impaired renal function (dashed line) (eGFR ≥ or < 60 ml/min/1.73m2), the 95% confidence interval is depicted in grey.
Fig 2.
Association of serum erythropoietin with single-nucleotide polymorphisms (SNP).
The -10log(P-value) is displayed on the y-axis, a higher value corresponds to a stronger association. Chromosome location is displayed on the x-axis. Each dot represents an individual SNP, the dark grey dots are the SNPs located in locus 6q23.