We observed that several SNPs in SCARNA16, IQGAP2, PTPRK, GLI3, ADARB2 and NDUFV2, which have been reported to be significantly associated with several other types of hearing loss, were also significantly associated with NIHL in this study (all P values ≤ 0.05; Table S3). This evidence concerns the gene IQGAP2 and noise induced hearing loss.