Table 3: Combined genotype analysis of IFNG+874T/A and NOS2A-954G/C SNPs in tuberculosis patients and control groups.

Combined genotypesTuberculosis patients
(%)
Control groups
(%) ORTST+ (%) OR

AA/GG 62 (36.0)56 (31.3)0.401.0033 (33.7)0.791.00
AA/GC 9 (5.2)5 (2.8)1.634 (4.1)1.20
AA/CC 1 (0.6)1 (0.6)0.901 (1.0)0.53
AT/GG 70 (40.7)80 (44.7)0.7939 (39.8)0.96
AT/GC 8 (4.7)11 (6.1)0.669 (9.2)0.47
TT/GG 20 (11.6)24 (13.4)0.7512 (12.2)0.89
TT/GC 2 (1.2)2 (1.1)0.900 (0)ND

The AA/GG combined genotype was used as reference in a 7 × 2 for trend table. The combined genotypes TT/GG and AT/GG were not present.
-value considered ; -value comparing TB patients and control group.
-value comparing TB patients and TST+ control subgroup.
TST+: tuberculin skin test positive; OR: odds ratio; ND: not determined.