NAT2 and tuberculosis: The MAF of the six NAT2 SNPs rs1041983, rs1801280, rs1799929, rs1799930, rs1208 and rs1799931 of the combined TB patients of Southern and Western India (n = 452) was 0.42, 0.35, 0.32, 0.36, 0.36 and 0.12, respectively.