In addition, the prevalence of the rs897200 CC genotype was lower in the PTB cases compared with LTBI individuals (<i>P</i>=0.039, OR = 0.54; 95%CI: 0.30-0.97).
In the combined sample, the association was stronger among younger subjects (pulmonary tuberculosis onset <25 years) with an odds ratio of developing pulmonary tuberculosis at rs897200 for GG vs AG/AA subjects of 1.47 (1.06-2.04).