Table 4.

Association of serum 25(OH)D < 50 nmol/l and anaemia with inflammation, stratified by race (Odds ratios and their 95% confidence intervals)

	All		White		Black
	OR*, †	95% CI	OR*	95% CI	OR*	95% CI
Unadjusted‡	4.51	2.13, 9.55	1.31	0.51, 3.40	8.93	2.49, 32.04
Model 1§	2.61	1.10, 6.17	0.98	0.36, 2.72	7.44	1.93, 28.75
Model 2∥	3.14	1.23, 7.99	1.20	0.39, 3.68	8.64	2.01, 37.23

^*Odds ratio comparing 25(OH)D < 50 nmol/l vs. 25(OH)D ≥ 50 nmol/l

^†Race not included as covariate due to evidence of interaction (P=0.03)

^‡Crude association between 25(OH)D < 50 nmol/l and anaemia, n 602

^§Adjusted for age, sex, BMI, n 599

^∥Model 1 + adjustment for use of iron supplements, income, and history of diabetes, n 474