Crude ORs based on 2-stages meta-analysis of the association of relapse-TB and immigration status in TB cases.

<p>The Overall OR was obtained using a random effect meta-analysis. Triangles are proportional to the study size, (value of population size for each study is also given). Diamonds represent overall results. Horizontal lines represent 95% confidence intervals. Year, year of data collection. Id, article reference number. I², statistic which measures the degree of heterogeneity. 95%CI, 95% confidence intervals. Id, article reference number. Weight (D-H), random effect weight based on the sample size of studies and the degree of heterogeneity.