Fig. 3

Subgroup analysis for the Gleason score of prostate cancer. Forest plots of subgroup analyses stratified by detected methods, ethnicities, and sample types show TMRPSS2-ERG fusion gene with corresponding heterogeneity statistics. Squares and horizontal lines correspond to study-specific ORs and 95% CIs; respectively. The area of the squares correlates with the weight of each enrolled study, and the diamonds represent the summary ORs and 95% CIs. Funnel plots represent the assessment of potential publication bias. The forest plots for a subgroup analysis stratified by detection methods, b subgroup analysis stratified by different races, c subgroup analysis stratified by sample types. The funnel plots for d subgroup analysis stratified by methods, e subgroup analysis stratified by races, f subgroup analysis stratified by sample types