Table 1.

One-way ANOVA with post hoc Tukey test for comparison of contact angle.

Variable	Comparison of	Comparison with	Mean difference	Std. error	P value
Contact angle	Group A	Group B	−16.17	3.4	0.0010
		Group C	−55.79	3.4	<0.001
		Group D	−23.49	3.4	<0.001
		Group E	−27.97	3.4	<0.001
	Group B	Group C	−39.62	3.4	<0.001
		Group D	−7.32	3.4	0.2530
		Group E	−11.8	3.4	0.021
	Group C	Group D	32.3	3.4	<0.001
		Group E	27.2	3.4	<0.001
	Group D	Group E	−4.47	3.4	0.699