Table 3B.

Multiple regression models for serum phosphate (mg/dl) in CKD male patients: Free testosterone

Unadjusted (β, P) (r2 = 0.10)Model 1 (β, P) (r2 = 0.47)Model 2 (β, P) (r2 = 0.64)
Free testosterone (10 pg/ml)−0.32 (<0.001)−0.13 (0.007)−0.04 (0.32)
Age (years)−0.01 (0.82)0.02 (0.57)
eGFR (ml/min per 1.73 m2)−0.52 (<0.001)−0.14 (0.08)
Serum calcium (mg/dl)−0.17 (0.004)−0.22 (<0.001)
PTH (pg/ml)0.78 (<0.001)
  • CKD, chronic kidney disease; eGFR, estimated glomerular filtration rate; PTH, parathyroid hormone.