PARP9 and tuberculosis: Subgroup analysis showed that DNA methylation levels over +1741 CpG site of the PARP9 gene was further decreased in TB patients with far advanced lesions on CXR versus that in those with mild to moderate lesions on CXR (56.91 ± 12.92 versus 64.62 ± 11.07 %, adjusted p = 0.001) or HS (adjusted p = 0.01).