Table 1 Baseline characteristics of patients by CKD category
From: Vitamin D insufficiency and deficiency with stages of chronic kidney disease in an Asian population
GFR <15 mL/min/1.73 m2 | GFR 15–29 mL/min/1.73 m2 | GFR 30–44 mL/min/1.73 m2 | GFR 45–59 mL/min/1.73 m2 | |
|---|---|---|---|---|
(N=581) | (N=514) | (N=838) | (N=962) | |
Age (yr) | 63.34±16.89* | 71.29±12.77** | 72.61±11.49* | 68.83±12.2 |
Male (n, %) | 286 (49.2%) | 258 (50.2%) | 479 (57.2%)** | 493 (51.2%) |
GFR (mL/min/1.73 m2) | 7.64±3.34* | 22.71±4.21* | 38.17±4.3* | 52.9±4.21 |
BUN (mg/dL) | 49.27±18.25* | 34.98±11.36* | 23.39±6.75* | 17.96±5.12 |
Serum creatinine (mg/dL) | 7.34±3.27* | 2.49±0.55* | 1.6±0.25* | 1.23±0.19 |
Hemoglobin (g/dL) | 10.82±1.71* | 11.07±1.57* | 12±1.7* | 12.56±1.63 |
Serum albumin (g/dL) | 3.99±0.55* | 4.08±0.49* | 4.25±0.39** | 4.33±0.42 |
Serum calcium (mg/dL) | 9.3±1* | 9.37±0.63* | 9.51±0.64 | 9.56±0.56 |
Serum phosphorus (mg/dL) | 4.53±1.43* | 3.66±0.56* | 3.46±0.56 | 3.37±0.56 |
Serum 25-hydroxyvitamin D (ng/mL) | 20.82±9.86* | 24.09±11.65* | 25.86±11.14** | 27.84±14.03 |
Serum alkaline phosphatase (U/L) | 168.39±329.4* | 91.33±50.15 | 78.11±57.81 | 71.82±32.15 |
Serum Intact-PTH (pg/mL) (interquartile ranges) | 211.5* (102.2, 411.1) | 83.5* (54.3, 124.4) | 59.9b (42.5, 87.7) | 51.8 (38.4, 77.1) |