Table 2.
Association of vitamin D quartiles with prevalence of NAFLD in lean and obese participants
| VD quartiles | Lean participants | Obese participants | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Total | NAFLD | PR% | PR | χ2 | P value | Total | NAFLD | PR% | PR | χ2 | P value | |
| Quartile 1 | 327 | 37 | 11.31 | 0.95 | 306 | 173 | 56.54 | 1.27 | ||||
| Quartile 2 | 292 | 38 | 13.01 | 1.09 | 343 | 205 | 59.77 | 1.34 | ||||
| Quartile 3 | 306 | 50 | 16.34 | 1.37 | 326 | 170 | 52.15 | 1.17 | ||||
| Quartile 4 | 319 | 38 | 11.91 | 1.00 | 4.133 | 0.247 | 319 | 142 | 44.51 | 1.00 | 17.118 | < 0.01 |
Participants were classified into quartiles according to their serum vitamin D levels: quartile 1, < 45.5 nmol/L; quartile 2, 45.5–59.5 nmol/L; quartile 3, 59.6–74.2 nmol/L; and quartile 4, ≥ 74.3 nmol/L
VD vitamin D, PR% prevalence rate, PR prevalence ratio