Table 3.
Mean levels of cardiometabolic characteristics by serum 25(OH)D concentration among Korean adolescents (n 1504) aged 12–18 years, KNHANES 2008–2009
| Serum 25(OH)D concentration (nmol/l) | |||||
|---|---|---|---|---|---|
| ≤50 | >50 | ||||
| Mean | se | Mean | se | P value* | |
| BMI (kg/m2) | 21·2 | 0·1 | 20·4 | 0·2 | <0·0001 |
| WC (cm) | 71·4 | 0·4 | 69·0 | 0·5 | <0·0001 |
| SBP (mmHg) | 107·1 | 0·4 | 105·8 | 0·7 | 0·201 |
| DBP (mmHg) | 68·6 | 0·4 | 66·4 | 0·5 | 0·002 |
| FPG (mg/dl) | 88·8 | 0·3 | 89·3 | 0·4 | 0·377 |
| HOMA-IR | 2·9 | 0·1 | 2·7 | 0·1 | 0·062 |
| TC (mg/dl) | 154·7 | 1·1 | 158·9 | 1·7 | 0·068 |
| HDL-C (mg/dl) | 53·4 | 0·4 | 53·1 | 0·6 | 0·457 |
| TAG (mg/dl) | 88·3 | 2·4 | 87·0 | 2·8 | 0·788† |
| WBC (×109/l) | 6·2 | 0·1 | 6·2 | 0·1 | 0·293 |
25(OH)D, 25-hydroxyvitamin D; KNHANES, Korea National Health and Nutrition Examination Survey; WC, waist circumference; SBP, systolic blood pressure; DBP, diastolic blood pressure; FPG, fasting plasma glucose; HOMA-IR, homeostasis model assessment of insulin resistance; TC, total cholesterol; HDL-C, HCL-cholesterol; WBC, white blood cell.
*P values were obtained by Student's t test.
†Log-transformation of TAG values was performed to calculate P value.