VDR and systemic lupus erythematosus: In Egyptian SLE patients vs. CS, the VDR SNPs were evaluated in haplotypes conformed to three polymorphic sites considering ApaI (rs7975232), BsmI (rs1544410), and FokI (rs2228570), reported that the aBF and ABF haplotypes (also interpreted as FBa and FBA, respectively) were highly more frequent in SLE patients than CS and were associated with SLE risk (OR = 2.5 [95% CI, 1.62–3.91], p = 0.008 and OR = 6.5 [95% CI, 3.11–13.84], p = 0.001, respectively).