Table 5 Association of serum vitamin D quartiles with risk of NAFLD in lean and obese participants

Lean

Models

χ² value

P value

Quartile 1 (n = 327)

Quartile 2 (n = 292)

Quartile 3 (n = 306)

Quartile 4 (n = 319)

Model 1

0.943 (0.583–1.527)

1.106 (0.684–1.789)

1.444 (0.917–2.275)

1

4.100

0.251

Model 2

1.248 (0.742–2.099)

1.334 (0.800–2.225)

1.557 (0.961–2.522)

1

3.305

0.347

Model 3

1.176 (0.673–2.055)

1.063 (0.609–1.853)

1.535 (0.916–2.571)

1

3.238

0.356

Obese

Models

χ² value

P value

Quartile 1 (n = 306)

Quartile 2 (n = 343)

Quartile 3 (n = 326)

Quartile 4 (n = 319)

Model 1

1.621 (1.182–2.224)

1.852 (1.360–2.521)

1.358 (0.996–1.852)

1

16.980

0.001

Model 2

1.941 (1.368–2.753)

1.963 (1.404–2.746)

1.508 (1.080–2.105)

1

19.461

< 0.001

Model 3

1.973 (1.359–2.865)

1.964 (1.371–2.815)

1.420 (0.992–2.033)

1

17.747

< 0.001