Figure 1. Single nucleotide polymorphisms
(SNPs) and their linkage disequilibrium (LD) for the COL18A1
gene. The SNPs are indicated from the 5′ end (left) to the 3′ end
(right) of the gene. The LD measures are expressed as D’ and r2
for all subjects under study (cases and controls combined), and are
calculated by Haploview. The shades of red (for D’) and gray (for r2)
the magnitude of the measures with deep red equal to 100% (or
1.00), which is omitted in the diagram to avoid cluttering.