Figure 1From: Multifactor dimensionality reduction reveals a three-locus epistatic interaction associated with susceptibility to pulmonary tuberculosis Distribution of cases (left bars) and controls (right bars) for each genotype combination from the three single nucleotide polymorphisms identified in the overall best model by multifactor dimensionality reduction (MDR) analysis. High-risk genotypes are shaded dark grey and low-risk genotypes are shaded light grey. The new variable constructed by MDR is shown on the right.Back to article page