Results of the meta-analysis of the diagnostic markers for colorectal cancer.

Notes: If the number of is more than three, the HSROC Plot and forest plot can be drawn, if the number of studies is more than two, only the forest plot can be drawn. Reference IDs to these studies are prefaced by a ‘D’ and listed in Appendix 4 in Materials S1. Y denotes Yes; N denotes No; N/A denotes not applicable, which means the value is not available. If the number of the studies is less than three, the p value of publication bias cannot be calculated. In addition, the false positive rate of marker P53 is zero, and then the odd ratio (OD) cannot be calculated, so all values are not applicable.