Research Article
Significant Independent Predictors of Vitamin D Deficiency in Inpatients and Outpatients of a Nephrology Unit
Table 2
Demographic and laboratory results of the inpatients and outpatients.
| | Variable | All patients () | Inpatients () | Outpatients () | value |
| | Age (years) | 54.06 ± 16.9 (18–91) | 56.9 ± 18 (18–91) | 51.8 ± 15.4 (21–84) | 0.008 | | Hospitalization days | — | 13.8 ± 11.2 (1–60) | — | — | | Serum 25(OH)D levels (ng/mL) (nM/L) | 16.5 ± 15.9 (0.4−110)
(41.2 ± 39.7) | 13.5 ± 15.9 (0.4–110)
(33.7 ± 39.7) | 18.9 ± 15.6 (1–82.8)
(47.2 ± 38.9) | <0.001 | | Blood urea nitrogen (mg/dL) | 54.4 ± 35.54 (7–185) | 66.3 ± 37.3 (10–185) | 43.1 ± 19.8 (7–102) | <0.001 | | Serum creatinine (mg/dL) | 5.8 ± 3.7 (0.6–17.8) | 6.3 ± 3.8 (0.7–17.8) | 5.4 ± 3.8 (0.6–16.8) | 0.021 | | Serum albumin (mg/dL) | 3.4 ± 0.7 (0.5–4.8) | 3.10 ± 0.7 (0.5–4.5) | 3.6 ± 0.6 (1.7–4.8) | <0.001 | | Serum calcium (mg/dL) | 9.0 ± 0.9 (6.0–12.7) | 8.6 ± 0.9 (6.0–12.0) | 9.2 ± 0.8 (7.3–12.7) | <0.001 | | Serum phosphorus (mg/dL) | 4.7 ± 1.6 (1.9–11.9) | 5.2 ± 1.8 (1.9–11.9) | 4.3 ± 1.3 (1.9–10.1) | <0.001 | | Serum parathyroid hormone (pg/mL) | 376.9 ± 425.9 (10.9–2500) | 377.2 ± 362.3 (35.3–2258) | 376.8 ± 472.7 (10.9–2500) | NS | | eGFR (mL/min/1.73 m2) | 24.6 ± 31.8 (1.5–125) | 16.4 ± 20.8 (1.5–125) | 31.3 ± 37.2 (2.1–125) | 0.001 | | Patients previously supplemented with cholecalcipherol | | 57 (45.6%) | 99 (63.9%) | 0.003 |
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The data were mean ± SD (min–max) or frequency (%).
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