K-ras Mutational Status in Cytohistological Tissue as a Molecular Marker for the Diagnosis of Pancreatic Cancer: A Systematic Review and Meta-Analysis

Table 4

Metaregression of the effects of methodological characteristics on diagnostic accuracy.

Var.	Coeff.	Std. Err.	𝑃 value	DOR	95% CI
Assay type	0.212	0.8041	0.7954	1.24	0.22–6.94
Country	0.431	0.9861	0.6690	1.54	0.19–12.75