. 2025 Mar 14;40(1):140. doi: 10.1007/s10103-025-04390-2

Table 4.

L, a and B parameters according to Trios4 scoring

		IOS score			Test stat.	p	r***;p
		Sound	initial	moderate/extensive	Test stat.	p	r***;p
L	Mean ± s.d	70.31 ± 11.31	49.37 ± 10.54	40.15 ± 11.09	102.096**	< 0.001	-0.742
	Median	72.1	48.55	38			<0.001
	(min. - max.)	(32–84)^a	(34–75.5)^b	(18–68.5)^b			<0.001
a	Mean ± s. d	4.76 ± 7.56^a	12.07 ± 3.7^b	14.25 ± 4.26^b	51.969*	< 0.001	0.552
	Median	4	12	12.9			< 0.001
	(min. - max.)	(-9.5–24)	(5.6–22)	(7.1–23)			< 0.001
b	Mean ± s. d	26.33 ± 9.95	32.35 ± 8.63	25.3 ± 9.85	9.879**	0.007	0.023

a: b There is no difference between those with the same letter.*One-way Analysis of Variance.**Kruskall Wallis Test.***Spearman’s Rho Correlation Coefficient