Figure 2. Linkage disequilibrium (LD) plot of six single nucleotide polymorphisms (SNPs) on complement factor D (CFD). The physical position of each SNP is shown above the plot. Darker shades of red indicate higher values of the LD coefficient (D'). The numbers in pink and white squares show the % of D' between SNPs with incomplete LD. Blue squares with no number indicate a pairwise linkage disequilibrium of 1 between SNPs, supported by logarithm (base 10) of odds (lod) scores < 2.