Research Article
The Association between 25-Hydroxyvitamin D and Hemoglobin A1c Levels in Patients with Type 2 Diabetes and Stage 1–5 Chronic Kidney Disease
Table 1
Characteristics of the study patients (mean ± standard deviation,
value in an ANOVA).
| | Status | Number of reports,
(%) | Age,
years | eGFR,
mL/min per
1.73 m2 | HbA1c,
(%) | 25(OH)D,
ng/mL | 25(OH)D
>30 ng/mL,
% | Erythrocyte metformin,
mg/L |
| | All reports | 542 | 65.0 ± 11.2 | 44.3 ± 23.8 | 7.6 ± 1.8 | 25.7 ± 18.3 | 34.7 | 1.43 ± 1.45 | | By CKD stage: | | | | | | | | | Stage 1 | 27 (5.0) | 59.9 ± 12.6 | 103.9 ± 11.1 | 7.5 ± 1.6 | 19.7 ± 15.9 | 22.2 | 0.91 ± 0.60 | | Stage 2 | 95 (17.5) | 63.4 ± 12.0 | 72.0 ± 8.7 | 7.9 ± 1.9 | 22.7 ± 16.3 | 28.6 | 1.06 ± 0.61 | | Stage 3 | 268 (49.4) | 66.8 ± 10.1 | 42.9 ± 8.3 | 7.8 ± 1.9 | 23.6 ± 16.8 | 30.6 | 1.31 ± 0.92 | | Stage 4 | 105 (19.4) | 66.3 ± 2.0 | 22.3 ± 4.3 | 7.4 ± 1.4 | 28.7 ± 19.2 | 39.0 | 1.68 ± 1.99 | | Stage 5 | 47 (8.7) | 57.8 ± 10.9 | 9.3 ± 3.1 | 6.3 ± 1.2 | 40.6 ± 21.6 | 68.1 | 2.58 ± 2.78 | | value | — | | | | | | | | By vitamin D status: | | | | | | | | | Sufficiency | 188 (34.7) | 65.6 ± 10.9 | 38.3 ± 23.1 | 6.7 ± 1.0 | 45.9 ± 14.9 | — | 1.39 ± 0.97 | | Insufficiency | 109 (20.1) | 63.4 ± 11.6 | 42.5 ± 22.4 | 7.3 ± 1.5 | 24.8 ± 2.7 | — | 1.31 ± 0.87 | | Deficiency | 245 (45.2) | 65.3 ± 11.3 | 49.6 ± 23.8 | 8.4 ± 2.0 | 10.7 ± 4.8 | — | 1.51 ± 1.89 | | value | — | NS | | | | — | NS |
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