1. Vitamin D Deficiency in Dialysis Patients: Effect of Dialysis Modality and Implications on Outcome 
Carolina Gracia-Iguacel, MD, Paloma Gallar, MD, PhD, Abdul R. Qureshi, MD, PhD, Olimpia Ortega, PhD, Carmen Mon, PhD, Milagros Ortiz, MD, PhD, Isabel Villarreal, PhD, Concepcion Garcia-Lacalle, PhD, Aniana Olieta, MD, PhD, Maria Sánchez, Juan C. Herrero, MD, PhD, Ana Vigil, MD, PhD, Beng Lindholm, MD, PhD, Juan J. Carrero, PhD 
Journal of Renal Nutrition 
Volume 20, Issue 6, Pages (November 2010)
DOI: /j.jrn
Copyright © 2010 National Kidney Foundation, Inc. Terms and Conditions

2. Figure 1
Distribution of vitamin D levels among 115 prevalent dialysis patients. Vertical dotted lines delineate the range of deficiency (5 to 15 ng/mL), insufficiency (>15 to 30 ng/mL), and normal (>30 ng/mL) vitamin D levels according to the current KDOQI guidelines.19
Journal of Renal Nutrition  , DOI: ( /j.jrn )
Copyright © 2010 National Kidney Foundation, Inc. Terms and Conditions

3. Figure 2
25(OH)D levels according to dialysis technique in 115 prevalent dialysis patients. The 25(OH)D levels were lower in PD patients as compared with hemodialysis patients (on-line hemodiafiltration [OL-HDF] and conventional hemodialysis [HD] combined). At the same time, 25(OH)D levels were significantly higher in patients treated by OL-HDF as compared with those treated by conventional HD.
Journal of Renal Nutrition  , DOI: ( /j.jrn )
Copyright © 2010 National Kidney Foundation, Inc. Terms and Conditions

4. Figure 3
Spearman's Rank correlation test between 25(OH)D and parathyroid hormone (PTH; Panel A) and pH (Panel B).
Journal of Renal Nutrition  , DOI: ( /j.jrn )
Copyright © 2010 National Kidney Foundation, Inc. Terms and Conditions

5. Figure 4
Kaplan–Meier according to 25(OH)D insufficiency in 115 prevalent dialysis patients.
Journal of Renal Nutrition  , DOI: ( /j.jrn )
Copyright © 2010 National Kidney Foundation, Inc. Terms and Conditions