Figure 2 illustrates the pooled OR for the associations between T2DM and UCP1 -3826A/G and UCP3 -55C/T polymorphisms and Figure 3 illustrates the pooled OR for the associations between the three UCP2 polymorphisms and T2DM, both assuming the allele contrast model. The gene discussed is UCP3; the disease is type 2 diabetes mellitus.