Table 2.

Serum and salivary levels of lactate dehydrogenase in the four study groups

Variable	Healthy individuals	OLP	OLRs	OSCC	P value
Serum LDH (u/L)	29.375 ± 6.4879	52.375 ± 14.7595	122.273 ± 16.6355*#	335.333 ± 41.1007 *#$	0.000
Unstimulated salivary LDH (U/L)	3.833 ± 1.1044	4.917 ± 1.3104	14.682 ± 3.0041	99.833 ± 49.3260*#$	0.021
stimulated salivary LDH (U/L)	3.500 ± 1.0751	3.638 ± 0.9776	20.909 ± 5.5424	112.208 ± 40.2209*#$	0.001

The data were expressed as mean ± standard error of the mean and analyzed by one-way ANOVA and Tukey’s post-hoc test, and *, # and $ indicate a significant difference with the healthy control, OLP and OLR groups at P < 0.05, respectively