Table 3.

Results of the meta-regression for heterogeneity sources.

Covariate	Coefficient	Standard Error	p	RDOR	(95% CI)
Study design	2.236	0.9	0.037	9.35	(1.17; 74.56)
RCM device	−0.838	1.09	0.46	0.43	(0,03; 5.38)
Reference standard	1.184	0.54	0.06	3.27	(0.93; 11.47)
Investigator experience	0.067	0.59	0.91	1.07	(0.27; 4.2)
Number of centers	0.561	0.79	0.5	1.75	(0.28; 10.98)

RDOR, Relative Diagnostic Odds Ratio; RCM, reflectance confocal microscopy.