In the Chinese population, we have identified that rs1104085 in the PCDH15 gene, rs3777781 and rs212769 in the EYA4 gene, rs666026 in the GRHL2 gene, and rs2521768 in the DFNA5 gene are associated with NIHL risk [10, 11]. Here, PCDH15 is linked to noise induced hearing loss.