SLC11A1 Polymorphisms and TB Figure 2. Meta-analysis of the association between tuberculosis and SLC11A1 39 UTR polymorphism (*TGTG- vs. TGTG+/+). a = subgroup of patients with spinal tuberculosis; b = subgroup of patients with pulmonary tuberculosis; c = subgroup of patients who were aboriginal Taiwanese; d = subgroup of patients who were Hans; CI = confidence interval; OR = odds ratio. doi:10.1371/journal.pone.0015831.g002 Egger weighted regression analysis). In the stratified analyses, similar results were observed between subgroups according to study base, and significant association was found only for Africans. After excluding studies specifically addressing extra-pulmonary TB, the associations between SLC11A1 polymorphisms and TB were not substantially changed (see Table S4). Similar associa- tions were observed as well when stratified the analysis on pulmonary TB (see Table S4), which suggests the effect of SLC11A1 polymorphisms might not be influenced by disease types. PLoS ONE | www.plosone.org 3 January 2011 | Volume 6 | Issue 1 | e15831