Conversely, the PD1.7 C allele is linked to an increased risk of MM, with the C/C genotype exhibiting a higher risk in the codominant (RR = 1.65, 95%CL: 1.32–2.05) and allelic (RR = 1.23, 95%CL: 1.06–1.43) models. Here, PDCD1 is linked to Miyoshi myopathy.