. 2023 Mar 10;15(3):910. doi: 10.3390/pharmaceutics15030910

Table 3.

Correlation matrix of selected variables: Pearson’s correlation coefficients, significant correlation indicated in bold.

Variable	pH	MC	WA ¹	PD	BD	TD	HR	Via 0	Via 6	Via 6_0
WL	−0.33	0.02	−0.21	0.47	−0.25	−0.19	0.05	−0.22	−0.17	−0.03
pH		0.56 *	0.31	0.44	−0.01	−0.20	−0.51 *	0.74 **	0.61 *	0.21
MC			0.44	0.15	−0.32	−0.39	−0.24	0.68 **	0.28	−0.21
WA ¹				0.37	−0.78 **	−0.79 ***	0.02	0.27	−0.05	−0.29
PD					−0.41	−0.56 *	−0.46	0.22	0.22	0.13
BD						0.94 ***	−0.15	0.10	0.38	0.45
TD							0.20	−0.07	0.13	0.24
HR								−0.50 *	−0.66 **	−0.51 *
Via 0									0.75 **	0.21
Via 6										0.80 ***

¹ Correlation coefficients for all combinations were calculated based on all samples except for combinations involving water absorption, where values for samples 1–15 were used (NA value for water absorption of sample 16). Statistical significance was as follows: *** p < 0.001; ** p < 0.01; * p < 0.05, respectively.