Lower serum magnesium is associated with vascular calcification in peritoneal dialysis patients: a cross sectional study

Table 2 Univariate linear regression

Variable	R ²	Unstandardized coefficient (B)	95% confidence interval (CI)	P value
Age	0.17	0.22	0.11, 0.33	0.00
Sex	0.005	−1.04	−4.41, 2.33	0.54
iPTH	0.02	0.03	−0.02, 0.09	0.23
Calcium	0.00	0.04	−8.55, 8.63	0.99
Phosphate	0.07	4.52	0.91, 8.13	0.02
LDL^a	0.07	−2.19	−4.09, −0.29	0.03
Time on dialysis	0.02	−0.40	−1.10, 0.30	0.26
Smoking history	0.03	2.53	−0.73, 5.79	0.13
Diabetes	0.06	3.51	0.33, 6.68	0.03
Albumin	0.004	−0.10	−0.45, 0.24	0.56
RRF	0.001	−0.05	−0.46, 0.37	0.83
Magnesium	0.06	−7.81	−15.01, −0.61	0.03

Smoking history (ex or current vs non-smoker)
iPTH intact parathyroid hormone
LDL low-density lipoprotein
RRF Residual renal function
^a75 patients included in the analysis for LDL (5 patients had values that were missing or could not be calculated). 80 patients included for all other variables

ISSN: 1471-2369