Table 5.
Association between 25 Hydroxy Vitamin D and Complement, Adjusting for Age, Sex, Race, Date, Prednisone, and Plaquenil.
| Marker | Association between Individual mean Vitamin D and Individual mean Complement: Slope (95% CI)1 |
P-value | Association between Individual variation in Vitamin D and Individual variation in complement. Slope (95% CI)1 |
P-value |
|---|---|---|---|---|
| C3 | −10.5 (−13.6, −7.3) | <0.0001 | 1.17 (0.28, 2.06) | 0.010 |
| C4 | −1.9 (−2.8, −1.0) | <0.0001 | 0.37 (0.16, 0.58) | 0.0005 |
1
Slopes are interpretable as difference in mean level of disease per 20ng/mL increase in vitamin D.