Mean serum vitamin D level according to Korean Healthy Eating Index quartiles in Korean adults
| Q1 (16.0–55.1) | Q2 (55.2–64.5) | Q3 (55.2–64.5) | Q4 (64.6–73.1) | P-value | |
|---|---|---|---|---|---|
| Unadjusted (ng/mL) | 15.5±0.3 | 16.2±0.3 | 16.8±0.3 | 17.4±0.3 | <0.001 |
| Model 1 (ng/mL) | 15.9±0.3 | 16.2±0.3 | 16.6±0.3 | 17.3±0.3 | 0.002 |
| Model 2 (ng/mL) | 15.9±0.3 | 16.1±0.3 | 16.5±0.3 | 17.0±0.3 | 0.009 |
Model 1: adjusted for age, sex, and body mass index (BMI). Model 2: adjusted for age, sex, BMI, current smoking status, alcohol consumption, physical activity, occupation, and residence.