Decreased Bone Mineral Density in Patients Submitted to Kidney Transplantation Is Related to Age, Body Mass Index, Time on Dialysis, and Hyperparathyroidism

Table 4

Correlations between bone density Z-scores and age, body mass index (BMI), PTH, time on dialysis, and time from kidney transplantation to bone mineral density evaluation (Tx-BMD) in different subgroups populations.

Groups/sites	Lumbar spine; Z-score	Femoral neck; -score	Total femur; Z-score
All patients	No correlation	No correlation	No correlation
Men	No correlation	No correlation	No correlation
Women	PTH and age; ( = 0.442 < 0.001)	PTH; ( = 0.356 < 0.001)	PTH; ( = 0.347 < 0.001)
Deceased donor	Time on dialysis; ( = 0.118 = 0.034)	No correlation	Time TPX-BMD; ( = 0.172 = 0.010)
Living donor	Time on dialysis; ( = 0.167 = 0.038)	Time on dialysis; ( = 0.270 = 0.007)	Time on dialysis and BMI; ( = 0.412 = 0.002)

Dependent variable: bone mineral density -scores.
Independent variables: sex, age, BMI, time on dialysis, time Tx-BMD, type of kidney donor, PTH, calcium, phosphorus, creatinine, and albumin.