The Relationship between the Concentration of Salivary Tyrosine and Antioxidants in Patients with Oral Lichen Planus

Table 2

Differences in the tested parameters (GPx, Tyr, and UA) in the saliva of OLP patients and controls. P: normal distribution in all measurements, repeated measurement Student’s -test, and post hoc analysis results (Fisher’s LSD test for associated couples); NP: no normality of distribution in at least one measurement, Mann-Whitney test, and post hoc results (Dunn’s test for couples associated).

Parameter	OLP patients ()	Controls ()
GPx (mU/mL)
			<0.001
Median	390.25	497.40	NP
Quartiles	363.93–433.25	478.5–516.2
Tyr (μmol/L)
			<0.001 P
UA (μmol/L)
			<0.001
Median	204.9	217.4	NP
Quartiles	201.15–208.4	214.25–220.72

P—Student’s -test (normal distribution in groups); NP—Mann-Whitney test (nonnormal distribution in at least one group).